{"video_id":"26DbJ3E4YKI","title":"Nvidia gave us their internal tools… What could go wrong?","channel":"Linus Tech Tips","show":"Linus Tech Tips","published_at":"2021-05-05T14:53:29Z","duration_s":898,"segments":[{"start_s":0.08,"end_s":7.6,"text":"those who are in the know know that when it comes to measuring the","speaker":null,"is_sponsor":0},{"start_s":3.84,"end_s":10.719,"text":"performance of a graphics card FPS is","speaker":null,"is_sponsor":0},{"start_s":7.6,"end_s":13.28,"text":"just part of the story i mean you could","speaker":null,"is_sponsor":0},{"start_s":10.719,"end_s":17.52,"text":"have all the FPS in the world but if you had an extremely high latency from your","speaker":null,"is_sponsor":0},{"start_s":15.44,"end_s":21.76,"text":"mouse click to the graphics card processing it outputting it and actually","speaker":null,"is_sponsor":0},{"start_s":19.52,"end_s":24.4,"text":"seeing the photons hit your eyeballs that wouldn't make for a very good","speaker":null,"is_sponsor":0},{"start_s":23.039,"end_s":28.64,"text":"gaming experience furthermore efficiency matters if you","speaker":null,"is_sponsor":0},{"start_s":26.8,"end_s":33.2,"text":"had two graphics cards that performed the same but one of them sucked back 500","speaker":null,"is_sponsor":0},{"start_s":31.439,"end_s":36.399,"text":"watts and outputs so much heat in your room that you're like","speaker":null,"is_sponsor":0},{"start_s":34.719,"end_s":41.28,"text":"gaming like this well surely you'd rather have the more","speaker":null,"is_sponsor":0},{"start_s":38.0,"end_s":43.04,"text":"efficient one now we've tried a variety","speaker":null,"is_sponsor":0},{"start_s":41.28,"end_s":47.68,"text":"of different methods of measuring these things in the past everything from clamp","speaker":null,"is_sponsor":0},{"start_s":45.04,"end_s":52.48,"text":"meters for power to makey makeys with high-speed cameras for input latency and","speaker":null,"is_sponsor":0},{"start_s":50.239,"end_s":57.52,"text":"sometimes it actually worked out okay but more often than not it required more","speaker":null,"is_sponsor":0},{"start_s":54.64,"end_s":64.0,"text":"setup than we can put into every single GPU on every single test bench","speaker":null,"is_sponsor":0},{"start_s":60.32,"end_s":67.28,"text":"fortunately that all changes today meet","speaker":null,"is_sponsor":0},{"start_s":64.0,"end_s":71.2,"text":"NVIDIA's homegrown tools they're calling","speaker":null,"is_sponsor":0},{"start_s":67.28,"end_s":73.68,"text":"these the ldat and the p cat","speaker":null,"is_sponsor":0},{"start_s":71.2,"end_s":79.6,"text":"and we're gonna see a if they work and b we're gonna discuss","speaker":null,"is_sponsor":0},{"start_s":77.04,"end_s":82.799,"text":"whether or not you can trust them glasswire is the tool that shows you","speaker":null,"is_sponsor":0},{"start_s":81.36,"end_s":87.04,"text":"which apps are slowing down your connection in real time it's used by","speaker":null,"is_sponsor":1},{"start_s":85.119,"end_s":91.119,"text":"security pros to monitor for malware block bandwidth wasters and detect","speaker":null,"is_sponsor":1},{"start_s":88.64,"end_s":95.64,"text":"suspicious activity get 25 off using offer code Linus at the link below","speaker":null,"is_sponsor":1},{"start_s":102.0,"end_s":108.159,"text":"let's start with ldap the latency and","speaker":null,"is_sponsor":0},{"start_s":105.2,"end_s":115.759,"text":"display analysis tool it's a rather unassuming looking","speaker":null,"is_sponsor":0},{"start_s":111.28,"end_s":118.24,"text":"logitech g203 prodigy but wait you need","speaker":null,"is_sponsor":0},{"start_s":115.759,"end_s":125.28,"text":"to look closely here there's actually a second wire coming out of this thing and","speaker":null,"is_sponsor":0},{"start_s":120.719,"end_s":129.0,"text":"if we follow it down to the end we find","speaker":null,"is_sponsor":0},{"start_s":125.28,"end_s":129.0,"text":"a photo sensor","speaker":null,"is_sponsor":0},{"start_s":131.2,"end_s":136.879,"text":"it's embedded in an unassuming looking little 3d printed housing and that wire","speaker":null,"is_sponsor":0},{"start_s":135.28,"end_s":141.12,"text":"from the mouse plugs right into the front of it a little something like that","speaker":null,"is_sponsor":0},{"start_s":139.44,"end_s":145.04,"text":"so then how is this supposed to work","speaker":null,"is_sponsor":0},{"start_s":143.28,"end_s":150.56,"text":"like so when you place this puppy on the screen","speaker":null,"is_sponsor":0},{"start_s":147.599,"end_s":154.0,"text":"it detects changes in light output so that means we're actually using a","speaker":null,"is_sponsor":0},{"start_s":152.16,"end_s":158.8,"text":"similar method to something like the one made by leo bodnar but fundamentally","speaker":null,"is_sponsor":0},{"start_s":156.72,"end_s":164.72,"text":"different in two ways one instead of taking an HDMI input to","speaker":null,"is_sponsor":0},{"start_s":162.48,"end_s":168.959,"text":"measure display latency we are actually taking a mouse input to measure end to","speaker":null,"is_sponsor":0},{"start_s":168.08,"end_s":173.92,"text":"end mouse to photon latency","speaker":null,"is_sponsor":0},{"start_s":171.28,"end_s":178.879,"text":"two it's software controlled from back to front so through that we can set up","speaker":null,"is_sponsor":0},{"start_s":176.4,"end_s":182.72,"text":"an auto fire mode that is completely unattended as long as something on","speaker":null,"is_sponsor":0},{"start_s":180.879,"end_s":186.56,"text":"screen changes every time the mouse clicks we can repeat our tests","speaker":null,"is_sponsor":0},{"start_s":184.56,"end_s":191.44,"text":"indefinitely to get a reading of potentially hundreds or even thousands","speaker":null,"is_sponsor":0},{"start_s":189.2,"end_s":196.959,"text":"of data points within a single minute of testing giving us an extremely accurate","speaker":null,"is_sponsor":0},{"start_s":194.0,"end_s":201.92,"text":"result it even lets us see raw sensor data so we can determine where the best","speaker":null,"is_sponsor":0},{"start_s":199.36,"end_s":205.599,"text":"place on the screen is to place the sensor you guys might not know this but","speaker":null,"is_sponsor":0},{"start_s":203.84,"end_s":210.72,"text":"screens actually draw like this not just","speaker":null,"is_sponsor":0},{"start_s":208.0,"end_s":215.2,"text":"like randomly not all at once yeah dead center is fine um ideally what it would","speaker":null,"is_sponsor":0},{"start_s":212.959,"end_s":219.2,"text":"be is like say you're measuring a game so if it's a first person shooter","speaker":null,"is_sponsor":0},{"start_s":217.519,"end_s":222.64,"text":"then you would be putting it over the muzzle where the muzzle flash would be","speaker":null,"is_sponsor":0},{"start_s":220.799,"end_s":226.72,"text":"press the button so why don't we go with my my personal favorite we'll go with","speaker":null,"is_sponsor":0},{"start_s":224.879,"end_s":231.12,"text":"that that cs go well there's you're missing a step oh i see there was","speaker":null,"is_sponsor":0},{"start_s":228.72,"end_s":234.64,"text":"another cable in that box yeah and it's still in there oh yeah wait what's this","speaker":null,"is_sponsor":0},{"start_s":232.72,"end_s":237.68,"text":"for that plugs into the light sensor well let's fire up the program first","speaker":null,"is_sponsor":0},{"start_s":236.319,"end_s":240.959,"text":"that would be on the desktop it's just in a folder called ldap ldap oh yeah i","speaker":null,"is_sponsor":0},{"start_s":239.76,"end_s":246.72,"text":"can measure audio as well it's got a little 3.5 millimeter audio jack in there so it can measure audio latency","speaker":null,"is_sponsor":0},{"start_s":245.2,"end_s":251.76,"text":"in theory you could measure any audio latency with that like not even a computer like","speaker":null,"is_sponsor":0},{"start_s":249.519,"end_s":255.36,"text":"a tv or something so if you keep it in free running mode then if as you move","speaker":null,"is_sponsor":0},{"start_s":253.76,"end_s":260.239,"text":"that around uh there you go see there was a little","speaker":null,"is_sponsor":0},{"start_s":258.0,"end_s":263.04,"text":"luminous change whoa look at that","speaker":null,"is_sponsor":0},{"start_s":261.44,"end_s":266.24,"text":"so if you put a brighter window over that or some kind of","speaker":null,"is_sponsor":0},{"start_s":266.639,"end_s":273.36,"text":"yeah like task manager whoa cool yeah so you can actually set the","speaker":null,"is_sponsor":0},{"start_s":271.52,"end_s":278.88,"text":"activation point for what luminance it should like pick up on uh-huh and uh","speaker":null,"is_sponsor":0},{"start_s":276.72,"end_s":282.56,"text":"yeah it'll just do it it's super fast sensor","speaker":null,"is_sponsor":0},{"start_s":280.56,"end_s":287.04,"text":"that's cool you can also add the uh mouse button as","speaker":null,"is_sponsor":0},{"start_s":284.88,"end_s":291.04,"text":"well with that second option so that it it actually will detect when","speaker":null,"is_sponsor":0},{"start_s":289.199,"end_s":294.96,"text":"you click the mouse this mode is mostly useful for setting things up the first","speaker":null,"is_sponsor":0},{"start_s":292.72,"end_s":298.479,"text":"time and that histogram is what you get after you get the latency calculation","speaker":null,"is_sponsor":0},{"start_s":297.04,"end_s":303.52,"text":"right now if you wanted to get something that's actually a latency calculation","speaker":null,"is_sponsor":0},{"start_s":300.639,"end_s":309.72,"text":"uh put the window for uh ldap in front of the sensor now click on the window","speaker":null,"is_sponsor":0},{"start_s":305.759,"end_s":309.72,"text":"like somewhere other than a control","speaker":null,"is_sponsor":0},{"start_s":310.24,"end_s":314.88,"text":"oh cool yeah so you can just do that it'll pick","speaker":null,"is_sponsor":0},{"start_s":314.0,"end_s":319.44,"text":"it up how how long it took for it to change so","speaker":null,"is_sponsor":0},{"start_s":317.199,"end_s":322.96,"text":"what it's doing is it's actually sending the pulse to make the click down the","speaker":null,"is_sponsor":0},{"start_s":321.36,"end_s":326.639,"text":"cable that's connected to the mouse it's not actually like using Windows or","speaker":null,"is_sponsor":0},{"start_s":325.28,"end_s":331.84,"text":"anything else to make the click it's it's all in in the hardware so you didn't have to have the software running","speaker":null,"is_sponsor":0},{"start_s":329.759,"end_s":335.44,"text":"on this computer not only does this automate the process and make it so that","speaker":null,"is_sponsor":0},{"start_s":333.68,"end_s":340.72,"text":"we can run these tests without a secondary pc or like camera capture","speaker":null,"is_sponsor":0},{"start_s":338.16,"end_s":345.52,"text":"setup it's going to save so much time it even exports in csv form which we can","speaker":null,"is_sponsor":0},{"start_s":343.6,"end_s":348.8,"text":"then import into excel and turn into nice little charts for you guys","speaker":null,"is_sponsor":0},{"start_s":347.6,"end_s":353.6,"text":"but it doesn't tell us","speaker":null,"is_sponsor":0},{"start_s":350.639,"end_s":359.84,"text":"what is contributing to the overall input lag it just tells us the total so","speaker":null,"is_sponsor":0},{"start_s":357.199,"end_s":364.88,"text":"what we're measuring here is everything debounce usb polling rate operating","speaker":null,"is_sponsor":0},{"start_s":363.039,"end_s":369.36,"text":"system processing delay driver processing delay game engine processing","speaker":null,"is_sponsor":0},{"start_s":366.72,"end_s":374.8,"text":"delay render to display delay and then finally of course the pixel response","speaker":null,"is_sponsor":0},{"start_s":371.44,"end_s":377.36,"text":"time of our display which isn't to say","speaker":null,"is_sponsor":0},{"start_s":374.8,"end_s":380.4,"text":"though that it's useless because if we've got this data it means that we can","speaker":null,"is_sponsor":0},{"start_s":379.68,"end_s":387.039,"text":"change other variables one at a time and just see if the","speaker":null,"is_sponsor":0},{"start_s":383.6,"end_s":389.44,"text":"overall delay gets better but it's got","speaker":null,"is_sponsor":0},{"start_s":387.039,"end_s":394.56,"text":"NVIDIA right on the box can we trust it","speaker":null,"is_sponsor":0},{"start_s":391.84,"end_s":397.36,"text":"yeah i mean it's just a mouse with wires coming out of the button that goes into","speaker":null,"is_sponsor":0},{"start_s":396.16,"end_s":400.96,"text":"the sensor you don't even have to plug it into the same computer it has nothing","speaker":null,"is_sponsor":0},{"start_s":399.28,"end_s":404.4,"text":"to do with NVIDIA so yeah i don't see any reason why not","speaker":null,"is_sponsor":0},{"start_s":403.199,"end_s":410.96,"text":"cool all right how about this other tool this","speaker":null,"is_sponsor":0},{"start_s":407.68,"end_s":412.479,"text":"is the pcat or power capture analysis","speaker":null,"is_sponsor":0},{"start_s":410.96,"end_s":418.16,"text":"tool you can tell these are named by the engineers right this is probably the","speaker":null,"is_sponsor":0},{"start_s":414.88,"end_s":421.199,"text":"most interesting thing i've seen in a","speaker":null,"is_sponsor":0},{"start_s":418.16,"end_s":422.72,"text":"long time when it comes to measuring","speaker":null,"is_sponsor":0},{"start_s":421.199,"end_s":427.599,"text":"graphics parts tools to accurately measure power","speaker":null,"is_sponsor":0},{"start_s":425.039,"end_s":433.36,"text":"consumption are not easily accessible being either very expensive or very rare","speaker":null,"is_sponsor":0},{"start_s":431.44,"end_s":439.52,"text":"or even worse both methods we've used in the past such as","speaker":null,"is_sponsor":0},{"start_s":436.56,"end_s":444.24,"text":"kilowatts don't accurately measure power draw because power supply inefficiencies","speaker":null,"is_sponsor":0},{"start_s":441.759,"end_s":448.24,"text":"can creep in to say nothing of the rest of the system's power consumption during","speaker":null,"is_sponsor":0},{"start_s":446.16,"end_s":452.4,"text":"the test even worse are the software derived methods you might use at home","speaker":null,"is_sponsor":0},{"start_s":449.919,"end_s":456.0,"text":"because a each vendor has a different idea of how to measure total board power","speaker":null,"is_sponsor":0},{"start_s":454.72,"end_s":460.0,"text":"and b you're counting on them to report it correctly","speaker":null,"is_sponsor":0},{"start_s":461.28,"end_s":466.639,"text":"never go up against a sicilian when death is on the line","speaker":null,"is_sponsor":0},{"start_s":466.96,"end_s":476.72,"text":"which brings us then to these two pcbs one with a pci express","speaker":null,"is_sponsor":0},{"start_s":473.199,"end_s":480.24,"text":"connector and card edge and another with","speaker":null,"is_sponsor":0},{"start_s":476.72,"end_s":481.36,"text":"a whole whack ton of pci express power","speaker":null,"is_sponsor":0},{"start_s":480.24,"end_s":486.319,"text":"connectors as you guys might have guessed","speaker":null,"is_sponsor":0},{"start_s":483.44,"end_s":489.919,"text":"these allow us to measure the power flowing through each of these connectors","speaker":null,"is_sponsor":0},{"start_s":488.879,"end_s":495.44,"text":"that is both from the power supply cables that","speaker":null,"is_sponsor":0},{"start_s":492.72,"end_s":501.039,"text":"come into the graphics card and through the motherboard itself with up to three","speaker":null,"is_sponsor":0},{"start_s":497.84,"end_s":503.599,"text":"eight pin pci express 12v cables","speaker":null,"is_sponsor":0},{"start_s":501.039,"end_s":508.879,"text":"now on this puppy right here we've got a removable OLED display that takes both","speaker":null,"is_sponsor":0},{"start_s":506.08,"end_s":512.88,"text":"the feed from the pci express board and the power interposers and spits out","speaker":null,"is_sponsor":0},{"start_s":510.8,"end_s":518.08,"text":"statistics and the current power draw NVIDIA claims it's within 0.25 of their","speaker":null,"is_sponsor":0},{"start_s":515.919,"end_s":523.599,"text":"oscilloscopes as far as accuracy goes so with this we can accurately measure what","speaker":null,"is_sponsor":0},{"start_s":520.64,"end_s":529.44,"text":"the real world power draw is for any pci express card actually not just a","speaker":null,"is_sponsor":0},{"start_s":527.279,"end_s":533.12,"text":"graphics card let's go ahead and try it out here this is one of those things","speaker":null,"is_sponsor":0},{"start_s":530.959,"end_s":537.36,"text":"that as a manufacturer you have to have the absolute utmost confidence in your","speaker":null,"is_sponsor":0},{"start_s":535.44,"end_s":540.56,"text":"products in order to produce because it's the kind of thing that","speaker":null,"is_sponsor":0},{"start_s":539.12,"end_s":544.08,"text":"obviously both AMD and NVIDIA have had internally","speaker":null,"is_sponsor":0},{"start_s":542.8,"end_s":549.12,"text":"for years but if you go ahead and you make all these","speaker":null,"is_sponsor":0},{"start_s":546.8,"end_s":554.0,"text":"tools available to you know every yahoo you know hardware reviewer out there","speaker":null,"is_sponsor":0},{"start_s":551.36,"end_s":557.279,"text":"then not just today but for years forever to come they're going to have","speaker":null,"is_sponsor":0},{"start_s":555.68,"end_s":560.88,"text":"the means to hold you accountable for your crappy products so you basically","speaker":null,"is_sponsor":0},{"start_s":558.8,"end_s":564.24,"text":"have to think you know not only do i have the best product","speaker":null,"is_sponsor":0},{"start_s":562.56,"end_s":569.04,"text":"today but i'm gonna have the best product forever and i want everyone to","speaker":null,"is_sponsor":0},{"start_s":566.32,"end_s":572.72,"text":"know about it to produce tools like this and send them out because i've asked for","speaker":null,"is_sponsor":0},{"start_s":570.56,"end_s":576.0,"text":"years like you guys obviously have all these measurement tools why don't you","speaker":null,"is_sponsor":0},{"start_s":574.399,"end_s":580.08,"text":"just provide them to us because you have them anyway and the answer is always","speaker":null,"is_sponsor":0},{"start_s":577.76,"end_s":583.44,"text":"like uh let me get back to you","speaker":null,"is_sponsor":0},{"start_s":582.32,"end_s":588.959,"text":"and yet here we are this is freaking awesome","speaker":null,"is_sponsor":0},{"start_s":587.04,"end_s":592.08,"text":"how replaceable is this Anthony is this just something NVIDIA's going to sell on","speaker":null,"is_sponsor":0},{"start_s":590.399,"end_s":595.76,"text":"their webstore or like is it reviewers only or for now it's a","speaker":null,"is_sponsor":0},{"start_s":594.24,"end_s":600.72,"text":"reviewers-only kind of thing it's just something that they've kind of built upon out of their lab that's why you see","speaker":null,"is_sponsor":0},{"start_s":598.88,"end_s":604.56,"text":"the 3d printed components but they haven't ruled out selling it to","speaker":null,"is_sponsor":0},{"start_s":602.64,"end_s":608.32,"text":"consumers if there's enough demand for it so uh","speaker":null,"is_sponsor":0},{"start_s":606.32,"end_s":611.279,"text":"maybe let them know down in the comments if you want to see that just just make","speaker":null,"is_sponsor":0},{"start_s":609.92,"end_s":617.2,"text":"sure that they're on the input side versus the other output side and there's","speaker":null,"is_sponsor":0},{"start_s":613.6,"end_s":618.64,"text":"a wire on each end all right so","speaker":null,"is_sponsor":0},{"start_s":617.2,"end_s":622.56,"text":"let's just put that puppy i don't know like","speaker":null,"is_sponsor":0},{"start_s":621.2,"end_s":629.6,"text":"brilliant so they include up to a triple slot","speaker":null,"is_sponsor":0},{"start_s":626.0,"end_s":631.6,"text":"of little dude adama jigs that you can","speaker":null,"is_sponsor":0},{"start_s":629.6,"end_s":635.6,"text":"screw in here to your case so you can actually mount it securely apparently","speaker":null,"is_sponsor":0},{"start_s":633.36,"end_s":638.16,"text":"it's a standard item for mcmaster car you can actually just order them","speaker":null,"is_sponsor":0},{"start_s":636.8,"end_s":642.64,"text":"yourself if you need a different threading for your screws oh okay","speaker":null,"is_sponsor":0},{"start_s":640.72,"end_s":644.959,"text":"uh well which i think may actually be necessary in our case all right we're","speaker":null,"is_sponsor":0},{"start_s":644.16,"end_s":650.72,"text":"just huh we're going straight yolo here boys","speaker":null,"is_sponsor":0},{"start_s":647.6,"end_s":653.519,"text":"oh yeah no problem piece of cake","speaker":null,"is_sponsor":0},{"start_s":650.72,"end_s":656.88,"text":"oh the display is upside down this is why we didn't give Linus the","speaker":null,"is_sponsor":0},{"start_s":654.959,"end_s":661.92,"text":"tools okay okay here we go total power 14 watts","speaker":null,"is_sponsor":0},{"start_s":660.24,"end_s":666.56,"text":"right now dang oh i should plug in an HDMI cable","speaker":null,"is_sponsor":0},{"start_s":664.959,"end_s":671.12,"text":"yeah power usage probably go up a little bit with the HDMI cable in yeah the good","speaker":null,"is_sponsor":0},{"start_s":669.12,"end_s":675.68,"text":"news is the HDMI cable should anchor it to the back of the case here so oh","speaker":null,"is_sponsor":0},{"start_s":673.12,"end_s":678.959,"text":"that's not a good solution what do you what do you work at Linus","speaker":null,"is_sponsor":0},{"start_s":677.04,"end_s":683.36,"text":"tech tips or something what's wrong with you listen we deal in jank around here","speaker":null,"is_sponsor":0},{"start_s":681.2,"end_s":687.92,"text":"right of course you're not stuck just looking at this little tiny display down","speaker":null,"is_sponsor":0},{"start_s":685.36,"end_s":694.079,"text":"here as freaking cool as that is there's an accompanying pcat utility v 1.1 that","speaker":null,"is_sponsor":0},{"start_s":691.279,"end_s":699.68,"text":"like the ldap one can log to csv files and additionally provide real-time power","speaker":null,"is_sponsor":0},{"start_s":696.399,"end_s":702.48,"text":"graphs look at this not just total but","speaker":null,"is_sponsor":0},{"start_s":699.68,"end_s":706.079,"text":"on a per-source basis so on our two eight pins here you can","speaker":null,"is_sponsor":0},{"start_s":704.88,"end_s":711.36,"text":"see we're doing somewhere in the neighborhood of four","speaker":null,"is_sponsor":0},{"start_s":708.64,"end_s":714.72,"text":"watts or so and then where is it yep 12 volt pci express so","speaker":null,"is_sponsor":0},{"start_s":713.6,"end_s":719.04,"text":"that's coming through the slot we're doing about four or five watts so it's actually equally balanced across all of","speaker":null,"is_sponsor":0},{"start_s":718.32,"end_s":723.04,"text":"them so then i can just fire up furmark right","speaker":null,"is_sponsor":0},{"start_s":721.68,"end_s":726.959,"text":"yeah and if you wanted to have all of those different uh metrics on the graph","speaker":null,"is_sponsor":0},{"start_s":725.44,"end_s":730.32,"text":"there was actually check boxes down at the bottom right there and that'll just","speaker":null,"is_sponsor":0},{"start_s":728.48,"end_s":735.76,"text":"throw them on there for you even just the like the Windows","speaker":null,"is_sponsor":0},{"start_s":732.399,"end_s":737.76,"text":"hardware GPU acceleration of the ui","speaker":null,"is_sponsor":0},{"start_s":735.76,"end_s":741.279,"text":"will give you these little spikes when you do stuff like watch i'm going to","speaker":null,"is_sponsor":0},{"start_s":739.2,"end_s":746.6,"text":"launch fur mark and it's like oh 40 watts hey we got to draw this window are","speaker":null,"is_sponsor":0},{"start_s":743.279,"end_s":749.12,"text":"you okay everybody calm down now","speaker":null,"is_sponsor":0},{"start_s":746.6,"end_s":753.44,"text":"250 watts and i guess we can","speaker":null,"is_sponsor":0},{"start_s":751.2,"end_s":755.92,"text":"believe it because that's about what we would expect out of a board like this","speaker":null,"is_sponsor":0},{"start_s":755.2,"end_s":762.48,"text":"and i mean this is just this is just power wires like it would","speaker":null,"is_sponsor":0},{"start_s":759.68,"end_s":768.32,"text":"have no way whatsoever of knowing if we have a Radeon or a g-force or a","speaker":null,"is_sponsor":0},{"start_s":765.76,"end_s":768.32,"text":"Intel","speaker":null,"is_sponsor":0},{"start_s":769.12,"end_s":774.56,"text":"not yet but later you know at some point yeah it's completely agnostic as far as","speaker":null,"is_sponsor":0},{"start_s":772.56,"end_s":778.48,"text":"it's concerned it can just measure power from whatever source doesn't matter if","speaker":null,"is_sponsor":0},{"start_s":776.24,"end_s":780.959,"text":"it's a graphics card or a sound card or a network card","speaker":null,"is_sponsor":0},{"start_s":779.68,"end_s":785.92,"text":"and just figure out what the power draw is we are going to be able to do the coolest like power draw charts for you","speaker":null,"is_sponsor":0},{"start_s":784.959,"end_s":791.12,"text":"guys and it gets even better because finally both","speaker":null,"is_sponsor":0},{"start_s":789.2,"end_s":797.839,"text":"of these tools integrate into frame view 1.1 to show latency and frames dropped","speaker":null,"is_sponsor":0},{"start_s":794.8,"end_s":800.24,"text":"by the display and power statistics from","speaker":null,"is_sponsor":0},{"start_s":797.839,"end_s":804.8,"text":"pcat now that the overlay has vulcan support plus we've got integration of","speaker":null,"is_sponsor":0},{"start_s":802.56,"end_s":809.519,"text":"these other tools there's actually very little that we wish that it did","speaker":null,"is_sponsor":0},{"start_s":807.04,"end_s":814.32,"text":"that it doesn't already directx 9 and 10 overlay next please and thank you","speaker":null,"is_sponsor":0},{"start_s":812.72,"end_s":821.519,"text":"let's go ahead and take a crack at this campaign so we've jumped to 4k and we're gonna","speaker":null,"is_sponsor":0},{"start_s":818.72,"end_s":827.32,"text":"see how this puppy performs here how much power it draws","speaker":null,"is_sponsor":0},{"start_s":823.519,"end_s":827.32,"text":"we're gonna know for sure","speaker":null,"is_sponsor":0},{"start_s":828.8,"end_s":836.8,"text":"broken ARM thing in your mouth boom broken head","speaker":null,"is_sponsor":0},{"start_s":834.88,"end_s":840.079,"text":"you fell off a cliff take that","speaker":null,"is_sponsor":0},{"start_s":838.16,"end_s":843.44,"text":"oh that guy threw a thing at me don't do that anyway that's not the point today","speaker":null,"is_sponsor":0},{"start_s":842.24,"end_s":848.0,"text":"the point is we are sucking back around","speaker":null,"is_sponsor":0},{"start_s":845.399,"end_s":851.36,"text":"250 water rooney's with this thing oh wow it's got right it's got the little","speaker":null,"is_sponsor":0},{"start_s":849.6,"end_s":854.399,"text":"display on it i don't even have to like all tab out i can see it i can see it","speaker":null,"is_sponsor":0},{"start_s":853.199,"end_s":859.279,"text":"right there i love this this is this is freaking","speaker":null,"is_sponsor":0},{"start_s":857.12,"end_s":862.32,"text":"cool and i'm sure that if the price is reasonable a lot of enthusiasts are","speaker":null,"is_sponsor":0},{"start_s":861.04,"end_s":866.399,"text":"going to want to get their hands on these things come on NVIDIA put it on","speaker":null,"is_sponsor":0},{"start_s":864.56,"end_s":871.12,"text":"the store today's video is brought to you by the drop objective 2 headphone","speaker":null,"is_sponsor":0},{"start_s":868.16,"end_s":875.68,"text":"amplifier aka the o2 amp this amp was designed and created with the feedback","speaker":null,"is_sponsor":1},{"start_s":873.279,"end_s":880.0,"text":"from over 500 drop members on what they wanted and serves as an ideal baseline","speaker":null,"is_sponsor":1},{"start_s":877.92,"end_s":884.88,"text":"reference amplifier powering everything from in-ear monitors to hd800s you can","speaker":null,"is_sponsor":1},{"start_s":882.8,"end_s":889.44,"text":"adjust the input output and power arrangements in two different gains","speaker":null,"is_sponsor":1},{"start_s":886.8,"end_s":893.92,"text":"medium and standard and it delivers big clear and accurate sound check it out at","speaker":null,"is_sponsor":1},{"start_s":892.0,"end_s":899.48,"text":"the link down below okay","speaker":null,"is_sponsor":1},{"start_s":895.04,"end_s":899.48,"text":"um what are we thinking for thumbnail","speaker":null,"is_sponsor":0}],"full_text":"those who are in the know know that when it comes to measuring the performance of a graphics card FPS is just part of the story i mean you could have all the FPS in the world but if you had an extremely high latency from your mouse click to the graphics card processing it outputting it and actually seeing the photons hit your eyeballs that wouldn't make for a very good gaming experience furthermore efficiency matters if you had two graphics cards that performed the same but one of them sucked back 500 watts and outputs so much heat in your room that you're like gaming like this well surely you'd rather have the more efficient one now we've tried a variety of different methods of measuring these things in the past everything from clamp meters for power to makey makeys with high-speed cameras for input latency and sometimes it actually worked out okay but more often than not it required more setup than we can put into every single GPU on every single test bench fortunately that all changes today meet NVIDIA's homegrown tools they're calling these the ldat and the p cat and we're gonna see a if they work and b we're gonna discuss whether or not you can trust them glasswire is the tool that shows you which apps are slowing down your connection in real time it's used by security pros to monitor for malware block bandwidth wasters and detect suspicious activity get 25 off using offer code Linus at the link below let's start with ldap the latency and display analysis tool it's a rather unassuming looking logitech g203 prodigy but wait you need to look closely here there's actually a second wire coming out of this thing and if we follow it down to the end we find a photo sensor it's embedded in an unassuming looking little 3d printed housing and that wire from the mouse plugs right into the front of it a little something like that so then how is this supposed to work like so when you place this puppy on the screen it detects changes in light output so that means we're actually using a similar method to something like the one made by leo bodnar but fundamentally different in two ways one instead of taking an HDMI input to measure display latency we are actually taking a mouse input to measure end to end mouse to photon latency two it's software controlled from back to front so through that we can set up an auto fire mode that is completely unattended as long as something on screen changes every time the mouse clicks we can repeat our tests indefinitely to get a reading of potentially hundreds or even thousands of data points within a single minute of testing giving us an extremely accurate result it even lets us see raw sensor data so we can determine where the best place on the screen is to place the sensor you guys might not know this but screens actually draw like this not just like randomly not all at once yeah dead center is fine um ideally what it would be is like say you're measuring a game so if it's a first person shooter then you would be putting it over the muzzle where the muzzle flash would be press the button so why don't we go with my my personal favorite we'll go with that that cs go well there's you're missing a step oh i see there was another cable in that box yeah and it's still in there oh yeah wait what's this for that plugs into the light sensor well let's fire up the program first that would be on the desktop it's just in a folder called ldap ldap oh yeah i can measure audio as well it's got a little 3.5 millimeter audio jack in there so it can measure audio latency in theory you could measure any audio latency with that like not even a computer like a tv or something so if you keep it in free running mode then if as you move that around uh there you go see there was a little luminous change whoa look at that so if you put a brighter window over that or some kind of yeah like task manager whoa cool yeah so you can actually set the activation point for what luminance it should like pick up on uh-huh and uh yeah it'll just do it it's super fast sensor that's cool you can also add the uh mouse button as well with that second option so that it it actually will detect when you click the mouse this mode is mostly useful for setting things up the first time and that histogram is what you get after you get the latency calculation right now if you wanted to get something that's actually a latency calculation uh put the window for uh ldap in front of the sensor now click on the window like somewhere other than a control oh cool yeah so you can just do that it'll pick it up how how long it took for it to change so what it's doing is it's actually sending the pulse to make the click down the cable that's connected to the mouse it's not actually like using Windows or anything else to make the click it's it's all in in the hardware so you didn't have to have the software running on this computer not only does this automate the process and make it so that we can run these tests without a secondary pc or like camera capture setup it's going to save so much time it even exports in csv form which we can then import into excel and turn into nice little charts for you guys but it doesn't tell us what is contributing to the overall input lag it just tells us the total so what we're measuring here is everything debounce usb polling rate operating system processing delay driver processing delay game engine processing delay render to display delay and then finally of course the pixel response time of our display which isn't to say though that it's useless because if we've got this data it means that we can change other variables one at a time and just see if the overall delay gets better but it's got NVIDIA right on the box can we trust it yeah i mean it's just a mouse with wires coming out of the button that goes into the sensor you don't even have to plug it into the same computer it has nothing to do with NVIDIA so yeah i don't see any reason why not cool all right how about this other tool this is the pcat or power capture analysis tool you can tell these are named by the engineers right this is probably the most interesting thing i've seen in a long time when it comes to measuring graphics parts tools to accurately measure power consumption are not easily accessible being either very expensive or very rare or even worse both methods we've used in the past such as kilowatts don't accurately measure power draw because power supply inefficiencies can creep in to say nothing of the rest of the system's power consumption during the test even worse are the software derived methods you might use at home because a each vendor has a different idea of how to measure total board power and b you're counting on them to report it correctly never go up against a sicilian when death is on the line which brings us then to these two pcbs one with a pci express connector and card edge and another with a whole whack ton of pci express power connectors as you guys might have guessed these allow us to measure the power flowing through each of these connectors that is both from the power supply cables that come into the graphics card and through the motherboard itself with up to three eight pin pci express 12v cables now on this puppy right here we've got a removable OLED display that takes both the feed from the pci express board and the power interposers and spits out statistics and the current power draw NVIDIA claims it's within 0.25 of their oscilloscopes as far as accuracy goes so with this we can accurately measure what the real world power draw is for any pci express card actually not just a graphics card let's go ahead and try it out here this is one of those things that as a manufacturer you have to have the absolute utmost confidence in your products in order to produce because it's the kind of thing that obviously both AMD and NVIDIA have had internally for years but if you go ahead and you make all these tools available to you know every yahoo you know hardware reviewer out there then not just today but for years forever to come they're going to have the means to hold you accountable for your crappy products so you basically have to think you know not only do i have the best product today but i'm gonna have the best product forever and i want everyone to know about it to produce tools like this and send them out because i've asked for years like you guys obviously have all these measurement tools why don't you just provide them to us because you have them anyway and the answer is always like uh let me get back to you and yet here we are this is freaking awesome how replaceable is this Anthony is this just something NVIDIA's going to sell on their webstore or like is it reviewers only or for now it's a reviewers-only kind of thing it's just something that they've kind of built upon out of their lab that's why you see the 3d printed components but they haven't ruled out selling it to consumers if there's enough demand for it so uh maybe let them know down in the comments if you want to see that just just make sure that they're on the input side versus the other output side and there's a wire on each end all right so let's just put that puppy i don't know like brilliant so they include up to a triple slot of little dude adama jigs that you can screw in here to your case so you can actually mount it securely apparently it's a standard item for mcmaster car you can actually just order them yourself if you need a different threading for your screws oh okay uh well which i think may actually be necessary in our case all right we're just huh we're going straight yolo here boys oh yeah no problem piece of cake oh the display is upside down this is why we didn't give Linus the tools okay okay here we go total power 14 watts right now dang oh i should plug in an HDMI cable yeah power usage probably go up a little bit with the HDMI cable in yeah the good news is the HDMI cable should anchor it to the back of the case here so oh that's not a good solution what do you what do you work at Linus tech tips or something what's wrong with you listen we deal in jank around here right of course you're not stuck just looking at this little tiny display down here as freaking cool as that is there's an accompanying pcat utility v 1.1 that like the ldap one can log to csv files and additionally provide real-time power graphs look at this not just total but on a per-source basis so on our two eight pins here you can see we're doing somewhere in the neighborhood of four watts or so and then where is it yep 12 volt pci express so that's coming through the slot we're doing about four or five watts so it's actually equally balanced across all of them so then i can just fire up furmark right yeah and if you wanted to have all of those different uh metrics on the graph there was actually check boxes down at the bottom right there and that'll just throw them on there for you even just the like the Windows hardware GPU acceleration of the ui will give you these little spikes when you do stuff like watch i'm going to launch fur mark and it's like oh 40 watts hey we got to draw this window are you okay everybody calm down now 250 watts and i guess we can believe it because that's about what we would expect out of a board like this and i mean this is just this is just power wires like it would have no way whatsoever of knowing if we have a Radeon or a g-force or a Intel not yet but later you know at some point yeah it's completely agnostic as far as it's concerned it can just measure power from whatever source doesn't matter if it's a graphics card or a sound card or a network card and just figure out what the power draw is we are going to be able to do the coolest like power draw charts for you guys and it gets even better because finally both of these tools integrate into frame view 1.1 to show latency and frames dropped by the display and power statistics from pcat now that the overlay has vulcan support plus we've got integration of these other tools there's actually very little that we wish that it did that it doesn't already directx 9 and 10 overlay next please and thank you let's go ahead and take a crack at this campaign so we've jumped to 4k and we're gonna see how this puppy performs here how much power it draws we're gonna know for sure broken ARM thing in your mouth boom broken head you fell off a cliff take that oh that guy threw a thing at me don't do that anyway that's not the point today the point is we are sucking back around 250 water rooney's with this thing oh wow it's got right it's got the little display on it i don't even have to like all tab out i can see it i can see it right there i love this this is this is freaking cool and i'm sure that if the price is reasonable a lot of enthusiasts are going to want to get their hands on these things come on NVIDIA put it on the store today's video is brought to you by the drop objective 2 headphone amplifier aka the o2 amp this amp was designed and created with the feedback from over 500 drop members on what they wanted and serves as an ideal baseline reference amplifier powering everything from in-ear monitors to hd800s you can adjust the input output and power arrangements in two different gains medium and standard and it delivers big clear and accurate sound check it out at the link down below okay um what are we thinking for thumbnail"}