NVidia's G-SYNC Reinvents V-Sync For LCDs

NVidia revealed today G-Sync, a new technology to avoid animation stutter on LCD screens without suffering from the disadvantages of V-Sync.

V-Sync prevents animation stuttering by limiting GPU frame rate to a multiple of the screen's refresh rate. A standard monitor has a refresh rate of 60FPS, so V-Sync forces GPU frame rate to 60 fps, 30 fps, 15 fps, etc... This synchronizes each frame rendering with a screen draw, but it reduces the frame rate and causes input lag.

But this 60 fps refresh rate is actually a relic carried from the past when CRT screens had to draw each frame pixel-by-pixel using its ray gun. Realizing that this limitation doesn't apply to LCD screens, NVidia designed G-Sync the other way around: the new tech syncs the screen refresh rate to the GPU's frame rate.

NVidia assembled together a team of "two dozen GPU architects and other senior guys" who spent "hundreds of engineer-years" to come up with an ideal solution: the G-SYNC Module.

The G-SYNC Module is built to fit inside a display and work with the hardware and software in most of our GeForce GTX GPUs.

With G-SYNC, the monitor begins a refresh cycle right after each frame is completely rendered on the GPU. Since the GPU renders with variable time, the refresh of the monitor now has no fixed rate. This has two main advantages: (1) screen is always in sync with GPU no matter what the frame rate is, so there is no stuttering whatsoever and there is no artificial limitation on FPS; and (2) each frame gets to be drawn as soon as it is ready, so input lag is at its minimum.

"G-SYNC moves us a little closer to gaming nirvana – a world of great image quality with no tearing, no monitor stutter, and really fast input response," NVidia Director of Technical Marketing Tom Petersen boasted.

Asus announced that a G-SYNC enabled version of its VG248QE monitor will retail for $399. This is $120 more than the standard version of the same monitor which retails for around $280.

Add new comment

CAPTCHA
This question is for testing whether you are a human visitor and to prevent automated spam submissions.

Comments

Marketing fail.

Requiring people to not only buy an Nvidia card but also an Nvidia monitor will only get luxury sales. Many gamers can barely afford to keep their PC to game grade performance. Now you want them to blow an extra 400 bucks. Good job convincing people it is worth it when they can just uncheck V sync. Lets see.....you can buy this monitor for 400 dollars or a ps4 to hook up to your 50 inch HDTV. I know which one I'd choose.

WHAT

So now we have 4k, g-sync,3-d 120hz, and typical v-sync monitors WTF it's kind of a joke to try and hoax you in more, given the 4k monitor would be ok as it gives you the higher res etc but to piss on the peeps who bought it and it doesn't come with g-sync lmao I feel sorry for them but I guess if they had enough money to buy it in the first place I guess they will waste it on another 4k monitor once its released with g-sync lmao

New card?

The money would be better spent on a new card that more than makes up for any losses due to V-sync & just turn V-sync on. If it's open & the monitor costs the same then great, otherwise, Nvidia, take your proprietary bullshit & shove it back up your ass. I'll get a new AMD card before I eat your next patented gimmick.

There will proabably be to

There will proabably be to little of these monitors, so they will sell at exorbitant price just like the 120hz monitors you need to play on 3dvision hardware. I'll buy an oculus rift instead to immerse in real 3d for the same price thanks anyway!

Add new comment