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Linus Tech tips coverage of CES 2014 is brought to you by nc.com your source for

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great technology selection and service along with Corsair memory and Western

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Digital NVIDIA is starting things off on a strong note when you walk into their

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Booth the first thing you're going to see is three 4K TVs running in NVIDIA

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surround powered by four GTX Titans

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running in NVIDIA SLI and you are going to see project cars a game being played

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by real people so this is not some kind of you know random Tech demo or anything

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like that running at a very smooth frame rate speaking of smooth frame rate if

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you look up above me you can see right there 4K suround gaming at 1.5 billion

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pixels per second NVIDIA's got tons of

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stuff they're demoing here game stream with Shield is obviously a big thing we

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went in the back room when we checked out Tegra K1 they've got some amazing

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demos running with face works as well as with Unreal Engine I mean it's a truly

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direct x1.2 open G4 4.4 compatible

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Graphics chip using Kepler the Kepler architecture Inside a Mobile form factor

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so that was super amazing but really I mean if you guys have heard me talk

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about gsync lately you'll know how excited I am about it and there was some

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misconception floating around that g-sync was only going to support 1080p

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TN panels but that's totally untrue

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they've actually got a wide variety of different partner Solutions most of

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which will be coming out this year with support for g-sync but the one that

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really grabbed my attention is is the uh pre-production one here at the end of

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the line so they've got two ASUS 4k monitors running here one of them's got

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their pendulum g-sync demo and that's interesting but we've seen that before I

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wanted to show you guys the real world demo because normally you can't really

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demo g-sync on video but in this case they've actually found a game that in a

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real world scenario demos it incredibly well so they've built a little app that

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Cycles between the different sync modes so you just press page up and right now

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we're running in vsync mode so you can see we're here over the water fraps is

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giving us a clean 60 FPS and everything runs butter smooth now as soon as we oh

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yeah there it is as soon as we go over a populated area it starts to really

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stutter because it's dropping down to 30 FPS due to the variance and how quickly

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the GPU can process these easy frames versus those more difficult ones now

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we're going to go ahead and press the button again and I believe this is going

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to drop us yeah there we go so we're up at around 78 FPS over the water

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still looks very very smooth over the water where we can maintain that frame

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rate but what happens when we go over that City oh look at that vertical

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tearing all right one more time here one more time here okay so we're over the

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water smooth smooth oh that tearing very very very awesome very awesome okay you

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can see it like sweeping back and forth so that's what happens with vsync

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completely off now here's the last example with gsync we're not going to

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see any leg and we're not going to see any tearing a little Green Dot 60 FPS

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over the water nice and buttery smooth smooth passing over the land oh wow look

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at that nice and smooth because instead of dropping down to 30 FPS we were able

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to drop down to any frame per second because gsync lets the graphics card

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control the refresh rate of the monitor so if it's running at 42 frames per

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second that monitor is running at 42 refreshes per second very very cool guys

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don't miss any of our CES 2014 coverage big thanks to nc.com for allowing us to

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be here at the show remember they're your source for great technology selection service we have a couple of

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other sponsors Corsair memory as well as Western Digital huge thanks to them as

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well because without them it wouldn't be possible for us to be here bringing you

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guys this content