Nvidia introduced G-Sync technology: a board built into monitors should save them from tearing and missing frames

Nvidia Corporation has taken one very important step in the development of LCD monitors: Nvidia G-Sync . This technology is capable of updating the monitor with a variable interval (up to a certain limit). Instead of updating the monitor at certain fixed intervals, the monitor will be updated the moment the video card finishes generating the frame.

The variable refresh interval combines the advantages of V-Sync ON (removes frame breaks) with the benefits of V-Sync OFF (low input delay [input lag]), while eliminating freezes (no difference between frames per second [frame rate] and refresh rate [refresh rate]).

Nvidia G-Sync Hardware

Rendering an image on a monitor with vertical sync turned on.

Now off.

Frame gap.

Nvidia G-Sync.

As you know, frame breaks and input lag is not the only problem with LCD monitors compared to CRT. They still have a problem such as motion blur, which still repels some from using LCD monitors. This problem has already become a thing of the past thanks to the appearance of monitors with a higher refresh rate, as well as the recently appeared LightBoost hack (applicable only on 120+ Hz monitors).

60 Hz:

120 Hz:

120 Hz + LightBoost:


As Nvidia later reported, all monitors with the G-Sync function will have the official version of LightBoost, but more detailed details will be known later.
We have a superior, low-persistence mode that should outperform that unofficial [LightBoost] implementation, and importantly, it will be available on every G-SYNC monitor. Details will be available at a later date.

It was announced that the availability of the G-Sync board will not increase much, but it is not yet known how much. BenQ, ASUS, Phillips, and Viewsonic are due to launch these devices starting in the first quarter of 2014. It was also announced that for the operation of G-Sync, a video card with Kepler architecture (GTX 660 and higher) will be required.

I would attach a video to the post, but those that I saw, unfortunately, do not show differences, since they are recorded at 30 fps, and to see the difference, you need at least 60. Therefore, I will leave it without video. If I find a good one, I’ll add it.
UPD. www.youtube.com/watch?v=NffTOnZFdVs

This technology will be interesting primarily for gamers, but it should also be more pleasant for an ordinary user to work with a monitor that supports the G-Sync function, primarily due to the elimination of blur.

UPD. Already this year, the first G-Sync modules will go to professional modders and will be installed in the ASUS VG248QE monitors, which has been rated by various publications as one of the best gaming LCD panels. Already modified VG248QE monitors will be sold by modding companies with a small margin to cover their costs, and will also include a one-year warranty on both the monitor itself and the G-Sync board.

Alternatively: if you know how to work with a screwdriver, you can buy an upgrade kit and modify your ASUS VG248QE yourself at home.This, of course, is a cheaper option. You will also receive a one-year warranty on the G-Sync module, but, of course, the guarantee will not cover the human factor when installing the board. Detailed installation instructions will be available online after the release. According to Nvidia, the installation time will take about 30 minutes.

If you are interested in the LightBoost hack, you can try it now if you have the right monitor. Instruction (eng.).

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