G-Sync not working correctly?

[Martin7]

Hi,

I can´t get off the feeling that G-Sync is not working correctly at my setup:
Samsung G7 Monitor VA 2560x1440 240Hz - Adaptive Sync is turned on at the monitor
7800x3d & 4090
Fresh windows installation (without Internet - did all basic driver updates before connected to the Internet).

Only change within NVCP was to turn on V-Sync and double-checked that resolution is set correctly and G-Sync is enabled.

• If I run a benchmark like 3D mark the shown frames from the benchmark and Hz from the Samsung OSD matches perfectly.

• In a game like Apex (V-Sync in-game turned "off", Nvidia reflex turned "on") - the framerate is capped at 225 frames without any drops but the Samsung OSD shows kinda high Hz fluctuations (going over 225Hz and also into 1xx Hz area), and now I just figured out as soon as I turn off Nvidia reflex in-game the cap moves to 240 frames and the Hz value also sticks now to 240Hz

Did I forget any setting, does my monitor just suck or is there any misunderstanding on my end?

[RealNC]

It's normal. VRR readouts on the monitor OSD are always weird. The best way to tell if g-sync is working is simply looking at the screen, then pan the camera smoothly (gamepad analog stick is usually better for this test) or walk/run sideways (strafing) and see if the animation is smooth or there's some slight stutter/judder to the movement. If it's smooth, g-sync is working just fine.

Turn g-sync off, cap to 225FPS with vsync ON, and you should see some judder that you're not seeing with g-sync. Although at 240Hz and with FPS being higher than about 100, it can be hard to tell the difference between g-sync ON and OFF. But if you cap low enough, especially to something that doesn't map well to 240Hz (try a 75FPS cap for example,) then g-sync ON vs OFF should produce quite a noticeable difference in smoothness.

[Martin7]

Thank you!