WEBVTT

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watch I'm going to take this Thunderbolt cable connect these two computers drag

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these giant files across

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and Mama 800 megabytes per second that

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is like installing the new Modern Warfare in less than 5 minutes and I can

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practically hear your chair scraping the floor as you jump up to go and try this

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but hold on a second you can't just plug

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two computers together and transfer files between them like that and you

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especially can't run a game on one PC

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and then play it completely losslessly on another and yet here I am doing it

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what you guys are looking at is in my opinion finally the answer to what

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exactly is it that makes Thunderbolt special now that Intel gave the spec to

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the USB if and if you're anything like me your head is absolutely swimming with

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questions right now how are they doing lossless encoding what is is the latency

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like do I really have to find out after

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looking at is called Thunderbolt share and it's in essence a piece of software

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that establishes a point-to-point network connection between two

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Thunderbolt 4 or Thunderbolt 5 Windows PCS it features exceptionally high

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bandwidth and Hyper low latency which kind of makes sense since you may recall

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that Thunderbolt is essentially a four lane wide PCIe connection with extras

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like USB for peripherals DisplayPort for monitors and power for one cable

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docking let's start by revisiting that file transfer demo that I just showed

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you guys because it's a the most obvious use case for this and B the easiest to

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understand in terms of the data flow our files get pulled off of the SSD of the

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first machine they get packed into packets they flow through the Thunderbolt chip through the thund

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bullet cable and then they get unpacked on the other side and dumped onto the

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SSD now I'm still a strong advocate for

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networked rather than point-to-point data Management Solutions but in a pinch

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guys you're at the hotel trying to back up some footage to a colleague who's

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flying home in the morning or you're at a land and your buddy needs to grab a

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game install this will allow data transfers at theoretical speeds of up to

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20 gbit per second for Thunderbolt 4 and

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40 gbit for Thunderbolt 5 which would bring that Modern Warfare install that I

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talked about before down to under a minute and other than high CPU usage

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during the transfer and Thunderbolts 1 M passive cable length limit there is no

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downside it's just ripping fast now

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let's push this button this is

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incredible even with a 10 or 25 GB

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network connection I have never in my life seen a PC to PC game stream with

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this little latency I mean I obviously haven't measured it with a high-speed

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camera yet I don't have one in my pocket but to the eye I would describe the

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latency as none and that's because every

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other solution steamlink Moonlight Etc

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relies on the GPU to render each frame

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and code it with a significant loss of fidelity and then transfer it to where

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it needs to be where it is received unpacked and then finally output to the

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display by contrast this is not encoded

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at all and before you call BS because

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believe me I was thinking the same thing have a look at this pudding because the

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proof is in it while mirroring we find

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none of the visual anomalies that I would normally associate with even a

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very high quality av1 stream and tap

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task manager over here is picking up some very serious bandwidth that is

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coming over that virtual link about 4 gbit there is of course some

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optimization taking place here Intel created their own remote desktop

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protocol that handles turning your displays output into Thunderbolt packets

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and that allows them to reduce bandwidth by updating only changed elements on the

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remote display but it does basically

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what it says on the tin and we're a little Cy about the details but as far

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as I can tell that high CPU usage about

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25% on a core Ultra 7 155h is just the

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cost of doing business when you're receiving a data stream this wide and

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the GPU usage is the secret sauce that

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makes this work so well Intel says they

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are going straight from GPU frame buffer on this side to GPU frame buffer on the

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other side no storage bottleneck they aren't even dumping it into RAM the

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software is still still in Alpha with no committed release date for now so we are

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just scratching the surface of what a link like this could unlock in the

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future but I'm am already extremely impressed by what I've seen and

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imagining countless applications for this I mean I showed you guys it goes

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both ways right we can see the screen from the one we can use the controller from this one on the other one I mean

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get this built into Windows and you wouldn't need a silly dual screen laptop

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no offense no offense dual screen laptops are great um just to you know

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share content with a colleague you just plug their computer into yours and Boop

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Flawless oh here's another one this would turn every outdated all-in-one or

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a laptop as long as it has Thunderbolt 4 and up into a monitor also by the way

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while you're ated Intel didn't talk to them about this ahead of time Please

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Release the remote desktop application I know I'm an edge case but like I would

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totally wire up my house for 25 gig fiber if I could just have all my Compu

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in a rack and then use thin clients for everything of course

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wires are passé now anyway let's move a couple of Paces this way where Intel is

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showing off their other next big thing for connectivity I already got my first

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taste of Wi-Fi 7 when I unboxed an eurom mesh Wi-Fi kit over on ShortCircuit and

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being the cynic that I am I was blown away when for once it actually delivered

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on the kind of generational performance upgrade that they claimed check this out

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these are real world transfer speeds at

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two three even in excess of 4 gabit per

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second I me that is faster than what 99%

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of people are getting with a wire right now and this easily lives up to Wi-Fi

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7's EHT or extremely high throughput

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moniker now your first reaction is probably why should I care I mean no

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one's internet is that fast and okay well first of all there are some people

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princes need internet too but that is a

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valid point I mean the services that you use online are likely to be a bottleneck

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before your Wi-Fi is at these kinds of speeds except that Wi-Fi rarely performs

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at Peak efficiency due to range limitations it's not always going to be

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like this not to mention Network congestion so you're going to get some

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fraction of that maximum speed and given that it's a lot higher than it used to

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be it's going to be a lot higher than it used to be also this is perhaps more

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important once everyone makes the switch non-streaming data transfers will be

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completed so much faster that it will free up airtime for everyone else which

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will help to Aid with congestion that's just a small part of the justification

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for the speed though this will enable Wi-Fi to be used for completely new

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applications I don't know about you but I am tired of seeing 4K video touted as

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a use case for the NextGen Wi-Fi didn't you just tell me the old one was good

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for that and I mean AK okay fair enough but seems to have pretty much completely

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petered out but a PC grade Wireless VR

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headset with nearly native video quality

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okay that is really exciting and there is so much more it's felt for a long

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time like each generation of Wi-Fi was all about support for more devices

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rather than making the one PC that I have in my basement go faster not this

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time one of the big keys to this is a carryover from Wi-Fi 6 reduced

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congestion thanks to support for the 6 GHz band part of this is that it just

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hasn't gotten clogged up yet like the 5 GHz and especially 2.4 GHz bands but

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much more significant is the fact that 6 GHz doubled the maximum Channel width to

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320 MHz and there's the fact that Wi-Fi

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7 can actually utilize connections on more than one band at the same time time

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using multi-link operation or mlo mllo

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is sick depending on the radio configuration it can enable either

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higher overall throughput as data can be broken up and transmitted over different

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bands simultaneously or this is great for the gamers out there lower latency

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as low as 1 millisecond by utilizing the first available band instead of being

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forced to wait its turn like it would on a single band let's go gamers another

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Improvement for individual users comes in the form of 4K QAM that's quadrature

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amplitude modulation which is a method for translating digital packets into

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analog signals by varying the amplitude and phase of the radio signal okay

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that's a lot to digest but in a nutshell

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instead of having a maximum of 1,24

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values per symbol which is the smallest amount of data that can be transmitted

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we can have one of 4,096 values which results in about a 20

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% transmission increase over Wi-Fi 6 all

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other things being equal and of course there are some multi-client things as

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well Wi-Fi 6 added the ability for multiple clients to transmit data to an

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access point simultaneously this is achieved through a technology called

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ofdma which basically establishes multiple subcarriers within Wi-Fi

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channels these subcarriers are grouped resource units which can each be

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assigned to a client device well Wi-Fi 7

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bands on this by allowing a client to be assigned multiple resource units so

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you're not leaving capacity that's just sitting there unused when there aren't

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many clients connected okay this is a good thing for individuals as well man I

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love this stuff um speaking of connected clients Preamble puncturing was an

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optional feature of Wi-Fi 6 that is now enabled across the board and allows

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modern devices to utilize channels that are partly occupied by Legacy users

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let's say for example an an old Wi-Fi IP

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camera is using 40 MHz in the middle of an otherwise unused 160 MHz wide Channel

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well Preamble puncturing allows a Wi-Fi 6 or 7 device to recognize that the

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channel is partially occupied and to utilize all the unoccupied portions of

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that channel so in our example that would be 120 MHz of bandwidth where

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under previous standards you'd be limited to the largest contiguous unused

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portion of the channel just 80 that was done back then to avoid interference but

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it left 40 MHz of bandwidth completely unused there's more uh conversations

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between APS and client devices are often called spatial streams and without

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boring you all completely to death modern APS can deal with more than one

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spatial stream at a time just how many they can deal with is usually a spec on

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the box with the ridiculous acronym of

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mimo that is multi-user multiple input

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multiple output and the values typically look like 2x two 4x4 or hey maybe 8 by8

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if you're a real baller the Wi-Fi 7 spec now allows for up to 16 simultaneous

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clients worth of input and output that is 16x16 mu mimo but the reality of it

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is most devices aren't going to implement that I mean Wi-Fi 6 supported

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8x8 but even a $600 Wi-Fi 6E router like

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netgear's Nighthawk only implemented 4x4

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and your laptop or smartphone is probably only 2x two by the way on that

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topic don't let manufacturers fool you

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more antenna sticking out of a device does not automatically equal better mimo

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performance while it is true that 2x two

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requires two antennas and 4x4 requires

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four just because it has eight sticking out of it like this Rog Rapture ax1000

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doesn't mean it can do the maximum 8x8 of Wi-Fi 6C and the same will go for

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Wi-Fi 7 in fact devices capable of Max

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Wi-Fi 7 performance are going to be rare if they exist at all and they're going

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to come with a serious price tag but

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even conservative implementations of Wi-Fi 7 are going to bring us

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significant improvements I mean maybe your budget friendly router only

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implements two band mllo but that is still double the bands that you could

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use before and now here's double the Segway double the segue to our sponsor

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that ShortCircuit where I unboxed that Euro Wi-Fi 7 thing it's super expensive

00:14:09.680 --> 00:14:17.560
and some of the features are locked behind a pay wall that I'm kind of not that into but it's fast it's really fast

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like even on a phone like more than two and a half gigabit what