{"video_id":"MRChkEvBXQA","title":"Galaxy NVIDIA GeForce GTX 680 Overclocking Guide & 7970 Performance Review Linus Tech Tips","channel":"Linus Tech Tips","show":"Linus Tech Tips","published_at":"2012-05-07T14:53:29Z","duration_s":753,"segments":[{"start_s":7.16,"end_s":16.6,"text":"the Dark Art of overclocking so the GTX 680 is to my understanding fairly over","speaker":null,"is_sponsor":0},{"start_s":13.839,"end_s":21.16,"text":"over overclockable but I haven't seen any numbers yet so I'm going to be using","speaker":null,"is_sponsor":0},{"start_s":19.0,"end_s":26.679,"text":"a retail sample so this is probably going to be the only review that's up on","speaker":null,"is_sponsor":0},{"start_s":23.279,"end_s":29.359,"text":"launch day of the GTX 680 using a retail","speaker":null,"is_sponsor":0},{"start_s":26.679,"end_s":34.559,"text":"non handpicked board and uh we're going to see how far it goes and how well it","speaker":null,"is_sponsor":0},{"start_s":31.88,"end_s":40.16,"text":"can compare in terms of performance to the highly overclockable","speaker":null,"is_sponsor":0},{"start_s":37.12,"end_s":43.039,"text":"hd7970 from AMD so I've already got a","speaker":null,"is_sponsor":0},{"start_s":40.16,"end_s":49.76,"text":"lot of my numbers prepared here uh I have my stock speed 680 results I have","speaker":null,"is_sponsor":0},{"start_s":46.48,"end_s":52.399,"text":"my doc speed 7970 results then I have my","speaker":null,"is_sponsor":0},{"start_s":49.76,"end_s":57.64,"text":"680 OC results still to fill in because I have not yet begun overclocking and","speaker":null,"is_sponsor":0},{"start_s":54.76,"end_s":64.239,"text":"then I've got my 7970 OC results which are based on uh basically maxing out the","speaker":null,"is_sponsor":0},{"start_s":62.079,"end_s":71.56,"text":"overclocking within the Catalyst Control Center so we were running at uh oh shoot","speaker":null,"is_sponsor":0},{"start_s":67.72,"end_s":75.68,"text":"what was it just right 1.125 GHz on the","speaker":null,"is_sponsor":0},{"start_s":71.56,"end_s":78.88,"text":"processor and then uh 6.3 GHz on the","speaker":null,"is_sponsor":0},{"start_s":75.68,"end_s":82.36,"text":"memory so this is one freaking fast card","speaker":null,"is_sponsor":0},{"start_s":78.88,"end_s":84.96,"text":"and I am very very excited to see what","speaker":null,"is_sponsor":0},{"start_s":82.36,"end_s":90.439,"text":"we can get out of its main competitor the GTX","speaker":null,"is_sponsor":0},{"start_s":87.88,"end_s":95.96,"text":"680 here you oh yeah I'll be having a right so guys I'll be having a look at","speaker":null,"is_sponsor":0},{"start_s":93.399,"end_s":99.28,"text":"not only the performance but also the difference in power consumption from","speaker":null,"is_sponsor":0},{"start_s":97.52,"end_s":105.28,"text":"overclocking these cards so you can see there was uh definitely an increase an","speaker":null,"is_sponsor":0},{"start_s":102.439,"end_s":109.119,"text":"increase increase uh from the stock power consumption to the overclock power","speaker":null,"is_sponsor":0},{"start_s":107.0,"end_s":112.92,"text":"consumption I'll also be looking at how temperatures are affected because I've","speaker":null,"is_sponsor":0},{"start_s":110.96,"end_s":117.36,"text":"got all of my Baseline readings done so stay tuned guys we are going to be using","speaker":null,"is_sponsor":0},{"start_s":115.04,"end_s":120.56,"text":"EVGA Precision which at launch is the only overclocking application to support","speaker":null,"is_sponsor":0},{"start_s":119.439,"end_s":124.64,"text":"the 6 I'm more of an MSI After Burner guy","speaker":null,"is_sponsor":0},{"start_s":122.56,"end_s":129.239,"text":"myself I love their oh yeah see it's not going to work um I love their simple","speaker":null,"is_sponsor":0},{"start_s":126.719,"end_s":132.56,"text":"interface and I'm just very used to it I like the way they do their graphs but","speaker":null,"is_sponsor":0},{"start_s":131.039,"end_s":137.48,"text":"since Precision is what we're using Precision is what I will have to figure","speaker":null,"is_sponsor":0},{"start_s":134.64,"end_s":140.64,"text":"out how to how to work so stay tuned guys let's see how this goes well I","speaker":null,"is_sponsor":0},{"start_s":139.08,"end_s":145.16,"text":"guess we better do a basic rundown of precision X first so number one is that","speaker":null,"is_sponsor":0},{"start_s":143.0,"end_s":151.4,"text":"it has integrated voltage adjustments for the GPU so you can actually slide","speaker":null,"is_sponsor":0},{"start_s":148.36,"end_s":152.84,"text":"these to where you want them to go","speaker":null,"is_sponsor":0},{"start_s":151.4,"end_s":157.319,"text":"you can press set I'm not going to be changing any voltages I did not change","speaker":null,"is_sponsor":0},{"start_s":154.64,"end_s":161.519,"text":"voltages on the 7970 so I will not be adjusting voltages on the GTX 680 for","speaker":null,"is_sponsor":0},{"start_s":159.84,"end_s":165.64,"text":"the sake of this basic overclocking guide you guys want to turn up voltages","speaker":null,"is_sponsor":0},{"start_s":163.2,"end_s":169.4,"text":"on your CPUs be careful in terms of your cooling be careful not to fry your GPU","speaker":null,"is_sponsor":0},{"start_s":167.72,"end_s":174.36,"text":"because it is a very expensive mistake to make and while yes turning up","speaker":null,"is_sponsor":0},{"start_s":171.92,"end_s":177.519,"text":"voltages may not affect it in any way this is a new graphics card on a new","speaker":null,"is_sponsor":0},{"start_s":176.0,"end_s":180.4,"text":"manufacturing process there are no guarantees that it won't break your card","speaker":null,"is_sponsor":0},{"start_s":179.2,"end_s":186.0,"text":"whether it's um today or tomorrow or 2 months from","speaker":null,"is_sponsor":0},{"start_s":183.76,"end_s":189.68,"text":"now so maybe let someone else be the guinea pig Okay so we've got a","speaker":null,"is_sponsor":0},{"start_s":187.64,"end_s":193.64,"text":"performance log frame rate target which is this kind of neat thing right here we","speaker":null,"is_sponsor":0},{"start_s":191.159,"end_s":199.159,"text":"can enable this to set a Target FPS which is interesting because it seems to","speaker":null,"is_sponsor":0},{"start_s":196.04,"end_s":201.959,"text":"be related to the fact that the GTX 680","speaker":null,"is_sponsor":0},{"start_s":199.159,"end_s":209.159,"text":"dynamically scales its power consumption which is I don't know probably here","speaker":null,"is_sponsor":0},{"start_s":205.239,"end_s":210.76,"text":"somewhere okay don't see it uh but it","speaker":null,"is_sponsor":0},{"start_s":209.159,"end_s":216.72,"text":"scales it power consumption with its GPU clocks in order","speaker":null,"is_sponsor":0},{"start_s":213.92,"end_s":221.239,"text":"to achieve the optimal heat output to well to stay within the uh the power","speaker":null,"is_sponsor":0},{"start_s":219.159,"end_s":224.76,"text":"Target and heat Target that it was designed for so in order to get any","speaker":null,"is_sponsor":0},{"start_s":223.4,"end_s":229.04,"text":"serious overclocking done you're probably going to want to adjust your power Target so I'm going to go ahead","speaker":null,"is_sponsor":0},{"start_s":227.2,"end_s":233.64,"text":"and tell it pretty much I don't care what kind of power Target you reach as","speaker":null,"is_sponsor":0},{"start_s":231.4,"end_s":236.959,"text":"long as we're not turning up any voltage okay so that's one thing we've also got","speaker":null,"is_sponsor":0},{"start_s":235.36,"end_s":243.239,"text":"monitoring of temperature monitoring of fan speed this is cool you can use this","speaker":null,"is_sponsor":0},{"start_s":240.2,"end_s":244.959,"text":"software to set up a fan curve I love","speaker":null,"is_sponsor":0},{"start_s":243.239,"end_s":248.879,"text":"fan curves I think they're amazing I think giving users the control to say","speaker":null,"is_sponsor":0},{"start_s":246.76,"end_s":253.439,"text":"okay yeah I'm comfortable you know with really low fan speeds up to 70 degre 70°","speaker":null,"is_sponsor":0},{"start_s":251.92,"end_s":257.079,"text":"and then I want it to ramp right up to 100% get it cooled back down if you want","speaker":null,"is_sponsor":0},{"start_s":255.48,"end_s":263.84,"text":"it to work that way you can totally make it work that way so I'm going to turn that off adjusting voltages aha GPU","speaker":null,"is_sponsor":0},{"start_s":261.919,"end_s":268.4,"text":"clock offset so let's talk about GPU boost so","speaker":null,"is_sponsor":0},{"start_s":265.4,"end_s":271.72,"text":"the basic clock here so that's at about","speaker":null,"is_sponsor":0},{"start_s":268.4,"end_s":274.28,"text":"1 GHz 1,00 6 MHz or something like that","speaker":null,"is_sponsor":0},{"start_s":271.72,"end_s":279.96,"text":"and then the Boost clock at 1056 or something along those lines those are","speaker":null,"is_sponsor":0},{"start_s":276.72,"end_s":284.039,"text":"both clock speeds of your GPU","speaker":null,"is_sponsor":0},{"start_s":279.96,"end_s":286.88,"text":"so you can you can set an offset so what","speaker":null,"is_sponsor":0},{"start_s":284.039,"end_s":293.919,"text":"that means is the offset until it detects that it has extra TDP room extra","speaker":null,"is_sponsor":0},{"start_s":289.919,"end_s":296.919,"text":"power room in order to uh boost itself","speaker":null,"is_sponsor":0},{"start_s":293.919,"end_s":299.88,"text":"up from the offset that you've set so","speaker":null,"is_sponsor":0},{"start_s":296.919,"end_s":303.88,"text":"for example if I set the offset at 100 MHz and I know this GPU is probably","speaker":null,"is_sponsor":0},{"start_s":302.12,"end_s":309.24,"text":"going to be good for 100 MHz otherwise I wouldn't set that you should probably only go up in increments of like you","speaker":null,"is_sponsor":0},{"start_s":307.0,"end_s":314.72,"text":"know 15 to 25 go ahead and apply that you can see those dials are hopefully","speaker":null,"is_sponsor":0},{"start_s":312.08,"end_s":320.72,"text":"going to move in some way or unless that's just showing the uh the base","speaker":null,"is_sponsor":0},{"start_s":316.68,"end_s":322.84,"text":"default one okay cool","speaker":null,"is_sponsor":0},{"start_s":320.72,"end_s":326.56,"text":"interesting maybe we'll just get started and see how this","speaker":null,"is_sponsor":0},{"start_s":324.52,"end_s":332.319,"text":"goes okay but either way that's how offsets are supposed to work so as it","speaker":null,"is_sponsor":0},{"start_s":328.759,"end_s":335.52,"text":"needs more power it can boost itself up","speaker":null,"is_sponsor":0},{"start_s":332.319,"end_s":337.44,"text":"and uh you're just setting up what the","speaker":null,"is_sponsor":0},{"start_s":335.52,"end_s":341.6,"text":"base GPU clock will be and it'll Boost from there that's sort of the point okay","speaker":null,"is_sponsor":0},{"start_s":339.88,"end_s":345.44,"text":"guys so I see how this works now while I don't recommend using furmark for any","speaker":null,"is_sponsor":0},{"start_s":343.44,"end_s":350.96,"text":"kind of extended period of time it's been handy for me for this because it's","speaker":null,"is_sponsor":0},{"start_s":347.16,"end_s":353.0,"text":"allowed me to uh examine how the here","speaker":null,"is_sponsor":0},{"start_s":350.96,"end_s":357.0,"text":"with the performance log I can see the percentage of power that the board is","speaker":null,"is_sponsor":0},{"start_s":354.479,"end_s":361.08,"text":"using please Focus there we go um compared to see we've hit 132 which is","speaker":null,"is_sponsor":0},{"start_s":359.52,"end_s":366.08,"text":"the the maximum I was able to set for the power Target compared to what the","speaker":null,"is_sponsor":0},{"start_s":363.52,"end_s":372.24,"text":"GPU clock is actually running at so 11:45 is what we seem to be peaking at","speaker":null,"is_sponsor":0},{"start_s":368.72,"end_s":374.599,"text":"which is actually ah 1172 is our 100%","speaker":null,"is_sponsor":0},{"start_s":372.24,"end_s":382.84,"text":"Peak so that's uh we should be somewhere in the neighborhood of 106 + 153 so what","speaker":null,"is_sponsor":0},{"start_s":377.599,"end_s":385.0,"text":"is that uh or 1,6 + 153 so","speaker":null,"is_sponsor":0},{"start_s":382.84,"end_s":388.56,"text":"1161 something like that so yeah you can see we're we're popping up there once in","speaker":null,"is_sponsor":0},{"start_s":387.0,"end_s":393.84,"text":"a while but not staying there consistently so I'll have to look at how","speaker":null,"is_sponsor":0},{"start_s":391.039,"end_s":397.84,"text":"performance is actually affected but it looks like the way the overclocking","speaker":null,"is_sponsor":0},{"start_s":395.4,"end_s":403.599,"text":"works at least with Precision is that we are pretty much just overclocking the","speaker":null,"is_sponsor":0},{"start_s":400.16,"end_s":406.039,"text":"Boost clock and I don't see a way to","speaker":null,"is_sponsor":0},{"start_s":403.599,"end_s":409.96,"text":"adjust the base clock although because yeah obviously I can't find uh any","speaker":null,"is_sponsor":0},{"start_s":408.28,"end_s":414.039,"text":"manual or instructions for this right now but if I it turns out that I'm wrong","speaker":null,"is_sponsor":0},{"start_s":412.199,"end_s":418.08,"text":"then I apologize and guys please leave a comment and let me know but there we","speaker":null,"is_sponsor":0},{"start_s":416.759,"end_s":424.08,"text":"have it so let's see what kind of a performance Improvement we get by","speaker":null,"is_sponsor":0},{"start_s":420.0,"end_s":427.479,"text":"increasing the turbo GPU boost clock","speaker":null,"is_sponsor":0},{"start_s":424.08,"end_s":429.56,"text":"offset on the GTX 680 well I can see","speaker":null,"is_sponsor":0},{"start_s":427.479,"end_s":434.12,"text":"this causing some confusion so due to the way GPU boosts uh Works where it","speaker":null,"is_sponsor":0},{"start_s":432.0,"end_s":440.639,"text":"turns up the GPU clock if it has the available power headro um if you turn","speaker":null,"is_sponsor":0},{"start_s":438.0,"end_s":445.039,"text":"the overclocking the offset up past where it's capable of throttling to it","speaker":null,"is_sponsor":0},{"start_s":442.28,"end_s":450.039,"text":"looks like performance does not continue to scale so you can see we have a score","speaker":null,"is_sponsor":0},{"start_s":447.919,"end_s":455.56,"text":"of 3167 so I'm I'm going to go back to my spreadsheet now when I was at 153","speaker":null,"is_sponsor":0},{"start_s":452.56,"end_s":458.599,"text":"offset we were able to score","speaker":null,"is_sponsor":0},{"start_s":455.56,"end_s":461.0,"text":"3488 on the extreme preset in 3D Mark 11","speaker":null,"is_sponsor":0},{"start_s":458.599,"end_s":466.919,"text":"however what you guys will see is 3172 so this is almost exactly the same","speaker":null,"is_sponsor":0},{"start_s":464.72,"end_s":472.08,"text":"as what I got with my stock configuration on the GTX 680 so it looks","speaker":null,"is_sponsor":0},{"start_s":469.199,"end_s":476.96,"text":"like once we turn it up past the threshold it doesn't necessarily scale","speaker":null,"is_sponsor":0},{"start_s":474.919,"end_s":481.599,"text":"100% correctly now this is an early beta version of precision X and like I said I","speaker":null,"is_sponsor":0},{"start_s":480.0,"end_s":484.24,"text":"have no instructions so I'm not even 100% sure if I'm doing it right but I'm","speaker":null,"is_sponsor":0},{"start_s":483.039,"end_s":488.199,"text":"going to put it back at the setting I had before and run it one more time to","speaker":null,"is_sponsor":0},{"start_s":486.08,"end_s":495.72,"text":"see if I can get my overclocked setting dialed in here so now we see an even","speaker":null,"is_sponsor":0},{"start_s":490.68,"end_s":497.599,"text":"higher score so this is at uh plus 153","speaker":null,"is_sponsor":0},{"start_s":495.72,"end_s":503.24,"text":"so you can see we're getting about 1250 MHz when the benchmarks are actually","speaker":null,"is_sponsor":0},{"start_s":499.759,"end_s":507.4,"text":"running and we're seeing about a 100ish","speaker":null,"is_sponsor":0},{"start_s":503.24,"end_s":509.52,"text":"102 119 126 so we're seeing pretty close","speaker":null,"is_sponsor":0},{"start_s":507.4,"end_s":513.039,"text":"to the power threshold that uh that we've said over here in some strenuous","speaker":null,"is_sponsor":0},{"start_s":511.599,"end_s":519.44,"text":"situations so let's do some real world benchmarking and find out how this","speaker":null,"is_sponsor":0},{"start_s":516.159,"end_s":520.8,"text":"um GPU boost overclocking actually works","speaker":null,"is_sponsor":0},{"start_s":519.44,"end_s":526.0,"text":"now I would really prefer if they made some tweaks to the to the interface here","speaker":null,"is_sponsor":0},{"start_s":523.8,"end_s":529.08,"text":"allowing you to boost up this base clock rather than only the Boost clock so that","speaker":null,"is_sponsor":0},{"start_s":527.72,"end_s":533.24,"text":"you have at least some idea of a baseline that you're running at uh","speaker":null,"is_sponsor":0},{"start_s":531.04,"end_s":536.48,"text":"without it doing any like funky scaling back and forth but maybe that's","speaker":null,"is_sponsor":0},{"start_s":534.92,"end_s":541.16,"text":"something we'll see in a future revision hard to say let's check out the real","speaker":null,"is_sponsor":0},{"start_s":538.839,"end_s":545.519,"text":"world performance perance uh so this is weird check this out guys so with the","speaker":null,"is_sponsor":0},{"start_s":542.839,"end_s":549.44,"text":"overclocked settings running on the GTX 680 I'm not getting that weird","speaker":null,"is_sponsor":0},{"start_s":547.56,"end_s":554.36,"text":"flickering that I was getting in Skyrim with it at stock speed so","speaker":null,"is_sponsor":0},{"start_s":551.8,"end_s":557.6,"text":"um yeah I don't know what to say it seems to have kind of healed itself","speaker":null,"is_sponsor":0},{"start_s":555.92,"end_s":563.2,"text":"anyway I'm just finishing up my overclocked settings benchmarking and","speaker":null,"is_sponsor":0},{"start_s":560.44,"end_s":568.6,"text":"I'll be done shortly so in conclusion even after overclocking both of the","speaker":null,"is_sponsor":0},{"start_s":565.56,"end_s":570.88,"text":"cards the GTX 680 is still the winner","speaker":null,"is_sponsor":0},{"start_s":568.6,"end_s":573.959,"text":"and once I get the hang of overclocking it it might actually be a winner by a","speaker":null,"is_sponsor":0},{"start_s":572.68,"end_s":578.04,"text":"more substantial margin so I have a game running in the background so this shows","speaker":null,"is_sponsor":0},{"start_s":576.04,"end_s":581.56,"text":"what my final overclock ended up being 145 this was stable in all of my gains","speaker":null,"is_sponsor":0},{"start_s":580.079,"end_s":585.8,"text":"you can see the fluctuations in the clock speed as well as the fluctuations","speaker":null,"is_sponsor":0},{"start_s":583.8,"end_s":592.12,"text":"in the peak power consumption according to the uh Power Target up here so um I","speaker":null,"is_sponsor":0},{"start_s":590.399,"end_s":595.56,"text":"mean yeah I think there's probably still some refinement to be done to the","speaker":null,"is_sponsor":0},{"start_s":593.519,"end_s":599.68,"text":"Precision X tool or whatever other tools end up becoming popular with these cards","speaker":null,"is_sponsor":0},{"start_s":597.959,"end_s":607.32,"text":"but let's talk results for a little bit here so idle power is up about 10 watts","speaker":null,"is_sponsor":0},{"start_s":603.6,"end_s":610.04,"text":"versus the stock clocked card and then","speaker":null,"is_sponsor":0},{"start_s":607.32,"end_s":617.8,"text":"um idle temps are around the same 3D Mark 11 uh we saw up to","speaker":null,"is_sponsor":0},{"start_s":613.6,"end_s":620.88,"text":"3572 3D marks um although at the same","speaker":null,"is_sponsor":0},{"start_s":617.8,"end_s":623.2,"text":"clock speeds we saw scores as about 100","speaker":null,"is_sponsor":0},{"start_s":620.88,"end_s":627.079,"text":"marks lower even so there seems to be some inconsistency in the scores","speaker":null,"is_sponsor":0},{"start_s":624.88,"end_s":630.92,"text":"although we saw fairly consistent improvements across the board at","speaker":null,"is_sponsor":0},{"start_s":629.36,"end_s":637.519,"text":"actually what I'm going to do is I'm going to um hide all this other stuff so","speaker":null,"is_sponsor":0},{"start_s":635.56,"end_s":645.959,"text":"we saw fairly consistent improvements across the board so here is the aha so","speaker":null,"is_sponsor":0},{"start_s":641.68,"end_s":650.36,"text":"we saw about a 7 8% Improvement in","speaker":null,"is_sponsor":0},{"start_s":645.959,"end_s":652.92,"text":"Battlefield 3 then in crisis 2 we saw","speaker":null,"is_sponsor":0},{"start_s":650.36,"end_s":657.48,"text":"yeah very little there so about a 4% Improvement 3 and 1/2% Improvement","speaker":null,"is_sponsor":0},{"start_s":654.839,"end_s":662.6,"text":"something along those lines Witcher 2 we see about a you know % Improvement","speaker":null,"is_sponsor":0},{"start_s":660.519,"end_s":666.8,"text":"something along those lines or like six or whatever that works out to uh power","speaker":null,"is_sponsor":0},{"start_s":665.2,"end_s":669.959,"text":"consumption is a little bit higher across the board using the same","speaker":null,"is_sponsor":0},{"start_s":668.279,"end_s":674.76,"text":"methodology I was using in my original performance review to measure that um","speaker":null,"is_sponsor":0},{"start_s":672.72,"end_s":679.12,"text":"see this is weird Dirt 3 actually went down a little bit in terms of average","speaker":null,"is_sponsor":0},{"start_s":677.44,"end_s":683.76,"text":"frame rate although power consumption went up substantially Batman Arkham City","speaker":null,"is_sponsor":0},{"start_s":681.92,"end_s":687.48,"text":"is up significantly I'm probably going to have to rerun these numbers and I'll","speaker":null,"is_sponsor":0},{"start_s":685.12,"end_s":691.56,"text":"do an annotation on my uh original review video if there's anything foul","speaker":null,"is_sponsor":0},{"start_s":690.16,"end_s":696.36,"text":"about them because you can see that power consumption number is low that could also have to do with GPU boost","speaker":null,"is_sponsor":0},{"start_s":694.68,"end_s":703.639,"text":"scaling back the power and scaling back the performance Skyrim we see uh NVIDIA","speaker":null,"is_sponsor":0},{"start_s":700.44,"end_s":705.88,"text":"is definitely the king here and we see a","speaker":null,"is_sponsor":0},{"start_s":703.639,"end_s":709.2,"text":"very moderate performance Improvement in Skyrim that is what I would consider to","speaker":null,"is_sponsor":0},{"start_s":707.6,"end_s":713.079,"text":"be within the margin of error for this test so we didn't see much of a","speaker":null,"is_sponsor":0},{"start_s":711.0,"end_s":719.6,"text":"performance boost there however it is still good enough to beat the radon","speaker":null,"is_sponsor":0},{"start_s":716.079,"end_s":722.16,"text":"7970 overclocked so there you have it it","speaker":null,"is_sponsor":0},{"start_s":719.6,"end_s":725.519,"text":"guys my GTX 680 let's call this preliminary overclocking video because I","speaker":null,"is_sponsor":0},{"start_s":724.16,"end_s":728.8,"text":"don't think we can call these results final but this is what I've got ready","speaker":null,"is_sponsor":0},{"start_s":727.48,"end_s":732.2,"text":"for launch and hopefully I'll be able to do a followup at some point let you guys","speaker":null,"is_sponsor":0},{"start_s":730.72,"end_s":735.72,"text":"know if there are any changes to my overclocking methodology with this card","speaker":null,"is_sponsor":0},{"start_s":734.16,"end_s":739.959,"text":"don't forget to subscribe to L Tech tips for more unboxings reviews and other","speaker":null,"is_sponsor":0},{"start_s":737.639,"end_s":743.44,"text":"computer computer videos and don't forget how dedicated I am to you guys","speaker":null,"is_sponsor":0},{"start_s":742.12,"end_s":748.12,"text":"here here I am finishing up my benchmarks and I'm probably not done for","speaker":null,"is_sponsor":0},{"start_s":745.32,"end_s":754.079,"text":"the night yet so enjoy subscribe for more sleep deprived nights with me","speaker":null,"is_sponsor":0}],"full_text":"the Dark Art of overclocking so the GTX 680 is to my understanding fairly over over overclockable but I haven't seen any numbers yet so I'm going to be using a retail sample so this is probably going to be the only review that's up on launch day of the GTX 680 using a retail non handpicked board and uh we're going to see how far it goes and how well it can compare in terms of performance to the highly overclockable hd7970 from AMD so I've already got a lot of my numbers prepared here uh I have my stock speed 680 results I have my doc speed 7970 results then I have my 680 OC results still to fill in because I have not yet begun overclocking and then I've got my 7970 OC results which are based on uh basically maxing out the overclocking within the Catalyst Control Center so we were running at uh oh shoot what was it just right 1.125 GHz on the processor and then uh 6.3 GHz on the memory so this is one freaking fast card and I am very very excited to see what we can get out of its main competitor the GTX 680 here you oh yeah I'll be having a right so guys I'll be having a look at not only the performance but also the difference in power consumption from overclocking these cards so you can see there was uh definitely an increase an increase increase uh from the stock power consumption to the overclock power consumption I'll also be looking at how temperatures are affected because I've got all of my Baseline readings done so stay tuned guys we are going to be using EVGA Precision which at launch is the only overclocking application to support the 6 I'm more of an MSI After Burner guy myself I love their oh yeah see it's not going to work um I love their simple interface and I'm just very used to it I like the way they do their graphs but since Precision is what we're using Precision is what I will have to figure out how to how to work so stay tuned guys let's see how this goes well I guess we better do a basic rundown of precision X first so number one is that it has integrated voltage adjustments for the GPU so you can actually slide these to where you want them to go you can press set I'm not going to be changing any voltages I did not change voltages on the 7970 so I will not be adjusting voltages on the GTX 680 for the sake of this basic overclocking guide you guys want to turn up voltages on your CPUs be careful in terms of your cooling be careful not to fry your GPU because it is a very expensive mistake to make and while yes turning up voltages may not affect it in any way this is a new graphics card on a new manufacturing process there are no guarantees that it won't break your card whether it's um today or tomorrow or 2 months from now so maybe let someone else be the guinea pig Okay so we've got a performance log frame rate target which is this kind of neat thing right here we can enable this to set a Target FPS which is interesting because it seems to be related to the fact that the GTX 680 dynamically scales its power consumption which is I don't know probably here somewhere okay don't see it uh but it scales it power consumption with its GPU clocks in order to achieve the optimal heat output to well to stay within the uh the power Target and heat Target that it was designed for so in order to get any serious overclocking done you're probably going to want to adjust your power Target so I'm going to go ahead and tell it pretty much I don't care what kind of power Target you reach as long as we're not turning up any voltage okay so that's one thing we've also got monitoring of temperature monitoring of fan speed this is cool you can use this software to set up a fan curve I love fan curves I think they're amazing I think giving users the control to say okay yeah I'm comfortable you know with really low fan speeds up to 70 degre 70° and then I want it to ramp right up to 100% get it cooled back down if you want it to work that way you can totally make it work that way so I'm going to turn that off adjusting voltages aha GPU clock offset so let's talk about GPU boost so the basic clock here so that's at about 1 GHz 1,00 6 MHz or something like that and then the Boost clock at 1056 or something along those lines those are both clock speeds of your GPU so you can you can set an offset so what that means is the offset until it detects that it has extra TDP room extra power room in order to uh boost itself up from the offset that you've set so for example if I set the offset at 100 MHz and I know this GPU is probably going to be good for 100 MHz otherwise I wouldn't set that you should probably only go up in increments of like you know 15 to 25 go ahead and apply that you can see those dials are hopefully going to move in some way or unless that's just showing the uh the base default one okay cool interesting maybe we'll just get started and see how this goes okay but either way that's how offsets are supposed to work so as it needs more power it can boost itself up and uh you're just setting up what the base GPU clock will be and it'll Boost from there that's sort of the point okay guys so I see how this works now while I don't recommend using furmark for any kind of extended period of time it's been handy for me for this because it's allowed me to uh examine how the here with the performance log I can see the percentage of power that the board is using please Focus there we go um compared to see we've hit 132 which is the the maximum I was able to set for the power Target compared to what the GPU clock is actually running at so 11:45 is what we seem to be peaking at which is actually ah 1172 is our 100% Peak so that's uh we should be somewhere in the neighborhood of 106 + 153 so what is that uh or 1,6 + 153 so 1161 something like that so yeah you can see we're we're popping up there once in a while but not staying there consistently so I'll have to look at how performance is actually affected but it looks like the way the overclocking works at least with Precision is that we are pretty much just overclocking the Boost clock and I don't see a way to adjust the base clock although because yeah obviously I can't find uh any manual or instructions for this right now but if I it turns out that I'm wrong then I apologize and guys please leave a comment and let me know but there we have it so let's see what kind of a performance Improvement we get by increasing the turbo GPU boost clock offset on the GTX 680 well I can see this causing some confusion so due to the way GPU boosts uh Works where it turns up the GPU clock if it has the available power headro um if you turn the overclocking the offset up past where it's capable of throttling to it looks like performance does not continue to scale so you can see we have a score of 3167 so I'm I'm going to go back to my spreadsheet now when I was at 153 offset we were able to score 3488 on the extreme preset in 3D Mark 11 however what you guys will see is 3172 so this is almost exactly the same as what I got with my stock configuration on the GTX 680 so it looks like once we turn it up past the threshold it doesn't necessarily scale 100% correctly now this is an early beta version of precision X and like I said I have no instructions so I'm not even 100% sure if I'm doing it right but I'm going to put it back at the setting I had before and run it one more time to see if I can get my overclocked setting dialed in here so now we see an even higher score so this is at uh plus 153 so you can see we're getting about 1250 MHz when the benchmarks are actually running and we're seeing about a 100ish 102 119 126 so we're seeing pretty close to the power threshold that uh that we've said over here in some strenuous situations so let's do some real world benchmarking and find out how this um GPU boost overclocking actually works now I would really prefer if they made some tweaks to the to the interface here allowing you to boost up this base clock rather than only the Boost clock so that you have at least some idea of a baseline that you're running at uh without it doing any like funky scaling back and forth but maybe that's something we'll see in a future revision hard to say let's check out the real world performance perance uh so this is weird check this out guys so with the overclocked settings running on the GTX 680 I'm not getting that weird flickering that I was getting in Skyrim with it at stock speed so um yeah I don't know what to say it seems to have kind of healed itself anyway I'm just finishing up my overclocked settings benchmarking and I'll be done shortly so in conclusion even after overclocking both of the cards the GTX 680 is still the winner and once I get the hang of overclocking it it might actually be a winner by a more substantial margin so I have a game running in the background so this shows what my final overclock ended up being 145 this was stable in all of my gains you can see the fluctuations in the clock speed as well as the fluctuations in the peak power consumption according to the uh Power Target up here so um I mean yeah I think there's probably still some refinement to be done to the Precision X tool or whatever other tools end up becoming popular with these cards but let's talk results for a little bit here so idle power is up about 10 watts versus the stock clocked card and then um idle temps are around the same 3D Mark 11 uh we saw up to 3572 3D marks um although at the same clock speeds we saw scores as about 100 marks lower even so there seems to be some inconsistency in the scores although we saw fairly consistent improvements across the board at actually what I'm going to do is I'm going to um hide all this other stuff so we saw fairly consistent improvements across the board so here is the aha so we saw about a 7 8% Improvement in Battlefield 3 then in crisis 2 we saw yeah very little there so about a 4% Improvement 3 and 1/2% Improvement something along those lines Witcher 2 we see about a you know % Improvement something along those lines or like six or whatever that works out to uh power consumption is a little bit higher across the board using the same methodology I was using in my original performance review to measure that um see this is weird Dirt 3 actually went down a little bit in terms of average frame rate although power consumption went up substantially Batman Arkham City is up significantly I'm probably going to have to rerun these numbers and I'll do an annotation on my uh original review video if there's anything foul about them because you can see that power consumption number is low that could also have to do with GPU boost scaling back the power and scaling back the performance Skyrim we see uh NVIDIA is definitely the king here and we see a very moderate performance Improvement in Skyrim that is what I would consider to be within the margin of error for this test so we didn't see much of a performance boost there however it is still good enough to beat the radon 7970 overclocked so there you have it it guys my GTX 680 let's call this preliminary overclocking video because I don't think we can call these results final but this is what I've got ready for launch and hopefully I'll be able to do a followup at some point let you guys know if there are any changes to my overclocking methodology with this card don't forget to subscribe to L Tech tips for more unboxings reviews and other computer computer videos and don't forget how dedicated I am to you guys here here I am finishing up my benchmarks and I'm probably not done for the night yet so enjoy subscribe for more sleep deprived nights with me"}