watch I'm going to take this Thunderbolt cable connect these two computers drag
these giant files across
and Mama 800 megabytes per second that
is like installing the new Modern Warfare in less than 5 minutes and I can
practically hear your chair scraping the floor as you jump up to go and try this
but hold on a second you can't just plug
two computers together and transfer files between them like that and you
especially can't run a game on one PC
and then play it completely losslessly on another and yet here I am doing it
what you guys are looking at is in my opinion finally the answer to what
exactly is it that makes Thunderbolt special now that Intel gave the spec to
the USB if and if you're anything like me your head is absolutely swimming with
questions right now how are they doing lossless encoding what is is the latency
like do I really have to find out after
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headset check out Wicked cushions and the link below what you were just
looking at is called Thunderbolt share and it's in essence a piece of software
that establishes a point-to-point network connection between two
Thunderbolt 4 or Thunderbolt 5 Windows PCS it features exceptionally high
bandwidth and Hyper low latency which kind of makes sense since you may recall
that Thunderbolt is essentially a four lane wide PCIe connection with extras
like USB for peripherals DisplayPort for monitors and power for one cable
docking let's start by revisiting that file transfer demo that I just showed
you guys because it's a the most obvious use case for this and B the easiest to
understand in terms of the data flow our files get pulled off of the SSD of the
first machine they get packed into packets they flow through the Thunderbolt chip through the thund
bullet cable and then they get unpacked on the other side and dumped onto the
SSD now I'm still a strong advocate for
networked rather than point-to-point data Management Solutions but in a pinch
guys you're at the hotel trying to back up some footage to a colleague who's
flying home in the morning or you're at a land and your buddy needs to grab a
game install this will allow data transfers at theoretical speeds of up to
20 gbit per second for Thunderbolt 4 and
40 gbit for Thunderbolt 5 which would bring that Modern Warfare install that I
talked about before down to under a minute and other than high CPU usage
during the transfer and Thunderbolts 1 M passive cable length limit there is no
downside it's just ripping fast now
let's push this button this is
incredible even with a 10 or 25 GB
network connection I have never in my life seen a PC to PC game stream with
this little latency I mean I obviously haven't measured it with a high-speed
camera yet I don't have one in my pocket but to the eye I would describe the
latency as none and that's because every
other solution steamlink Moonlight Etc
relies on the GPU to render each frame
and code it with a significant loss of fidelity and then transfer it to where
it needs to be where it is received unpacked and then finally output to the
display by contrast this is not encoded
at all and before you call BS because
believe me I was thinking the same thing have a look at this pudding because the
proof is in it while mirroring we find
none of the visual anomalies that I would normally associate with even a
very high quality av1 stream and tap
task manager over here is picking up some very serious bandwidth that is
coming over that virtual link about 4 gbit there is of course some
optimization taking place here Intel created their own remote desktop
protocol that handles turning your displays output into Thunderbolt packets
and that allows them to reduce bandwidth by updating only changed elements on the
remote display but it does basically
what it says on the tin and we're a little Cy about the details but as far
as I can tell that high CPU usage about
25% on a core Ultra 7 155h is just the
cost of doing business when you're receiving a data stream this wide and
the GPU usage is the secret sauce that
makes this work so well Intel says they
are going straight from GPU frame buffer on this side to GPU frame buffer on the
other side no storage bottleneck they aren't even dumping it into RAM the
software is still still in Alpha with no committed release date for now so we are
just scratching the surface of what a link like this could unlock in the
future but I'm am already extremely impressed by what I've seen and
imagining countless applications for this I mean I showed you guys it goes
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
get this built into Windows and you wouldn't need a silly dual screen laptop
no offense no offense dual screen laptops are great um just to you know
share content with a colleague you just plug their computer into yours and Boop
Flawless oh here's another one this would turn every outdated all-in-one or
a laptop as long as it has Thunderbolt 4 and up into a monitor also by the way
while you're ated Intel didn't talk to them about this ahead of time Please
Release the remote desktop application I know I'm an edge case but like I would
totally wire up my house for 25 gig fiber if I could just have all my Compu
in a rack and then use thin clients for everything of course
wires are passé now anyway let's move a couple of Paces this way where Intel is
showing off their other next big thing for connectivity I already got my first
taste of Wi-Fi 7 when I unboxed an eurom mesh Wi-Fi kit over on ShortCircuit and
being the cynic that I am I was blown away when for once it actually delivered
on the kind of generational performance upgrade that they claimed check this out
these are real world transfer speeds at
two three even in excess of 4 gabit per
second I me that is faster than what 99%
of people are getting with a wire right now and this easily lives up to Wi-Fi
7's EHT or extremely high throughput
moniker now your first reaction is probably why should I care I mean no
one's internet is that fast and okay well first of all there are some people
princes need internet too but that is a
valid point I mean the services that you use online are likely to be a bottleneck
before your Wi-Fi is at these kinds of speeds except that Wi-Fi rarely performs
at Peak efficiency due to range limitations it's not always going to be
like this not to mention Network congestion so you're going to get some
fraction of that maximum speed and given that it's a lot higher than it used to
be it's going to be a lot higher than it used to be also this is perhaps more
important once everyone makes the switch non-streaming data transfers will be
completed so much faster that it will free up airtime for everyone else which
will help to Aid with congestion that's just a small part of the justification
for the speed though this will enable Wi-Fi to be used for completely new
applications I don't know about you but I am tired of seeing 4K video touted as
a use case for the NextGen Wi-Fi didn't you just tell me the old one was good
for that and I mean AK okay fair enough but seems to have pretty much completely
petered out but a PC grade Wireless VR
headset with nearly native video quality
okay that is really exciting and there is so much more it's felt for a long
time like each generation of Wi-Fi was all about support for more devices
rather than making the one PC that I have in my basement go faster not this
time one of the big keys to this is a carryover from Wi-Fi 6 reduced
congestion thanks to support for the 6 GHz band part of this is that it just
hasn't gotten clogged up yet like the 5 GHz and especially 2.4 GHz bands but
much more significant is the fact that 6 GHz doubled the maximum Channel width to
320 MHz and there's the fact that Wi-Fi
7 can actually utilize connections on more than one band at the same time time
using multi-link operation or mlo mllo
is sick depending on the radio configuration it can enable either
higher overall throughput as data can be broken up and transmitted over different
bands simultaneously or this is great for the gamers out there lower latency
as low as 1 millisecond by utilizing the first available band instead of being
forced to wait its turn like it would on a single band let's go gamers another
Improvement for individual users comes in the form of 4K QAM that's quadrature
amplitude modulation which is a method for translating digital packets into
analog signals by varying the amplitude and phase of the radio signal okay
that's a lot to digest but in a nutshell
instead of having a maximum of 1,24
values per symbol which is the smallest amount of data that can be transmitted
we can have one of 4,096 values which results in about a 20
% transmission increase over Wi-Fi 6 all
other things being equal and of course there are some multi-client things as
well Wi-Fi 6 added the ability for multiple clients to transmit data to an
access point simultaneously this is achieved through a technology called
ofdma which basically establishes multiple subcarriers within Wi-Fi
channels these subcarriers are grouped resource units which can each be
assigned to a client device well Wi-Fi 7
bands on this by allowing a client to be assigned multiple resource units so
you're not leaving capacity that's just sitting there unused when there aren't
many clients connected okay this is a good thing for individuals as well man I
love this stuff um speaking of connected clients Preamble puncturing was an
optional feature of Wi-Fi 6 that is now enabled across the board and allows
modern devices to utilize channels that are partly occupied by Legacy users
let's say for example an an old Wi-Fi IP
camera is using 40 MHz in the middle of an otherwise unused 160 MHz wide Channel
well Preamble puncturing allows a Wi-Fi 6 or 7 device to recognize that the
channel is partially occupied and to utilize all the unoccupied portions of
that channel so in our example that would be 120 MHz of bandwidth where
under previous standards you'd be limited to the largest contiguous unused
portion of the channel just 80 that was done back then to avoid interference but
it left 40 MHz of bandwidth completely unused there's more uh conversations
between APS and client devices are often called spatial streams and without
boring you all completely to death modern APS can deal with more than one
spatial stream at a time just how many they can deal with is usually a spec on
the box with the ridiculous acronym of
mimo that is multi-user multiple input
multiple output and the values typically look like 2x two 4x4 or hey maybe 8 by8
if you're a real baller the Wi-Fi 7 spec now allows for up to 16 simultaneous
clients worth of input and output that is 16x16 mu mimo but the reality of it
is most devices aren't going to implement that I mean Wi-Fi 6 supported
8x8 but even a $600 Wi-Fi 6E router like
netgear's Nighthawk only implemented 4x4
and your laptop or smartphone is probably only 2x two by the way on that
topic don't let manufacturers fool you
more antenna sticking out of a device does not automatically equal better mimo
performance while it is true that 2x two
requires two antennas and 4x4 requires
four just because it has eight sticking out of it like this Rog Rapture ax1000
doesn't mean it can do the maximum 8x8 of Wi-Fi 6C and the same will go for
Wi-Fi 7 in fact devices capable of Max
Wi-Fi 7 performance are going to be rare if they exist at all and they're going
to come with a serious price tag but
even conservative implementations of Wi-Fi 7 are going to bring us
significant improvements I mean maybe your budget friendly router only
implements two band mllo but that is still double the bands that you could
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
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
like even on a phone like more than two and a half gigabit what