G-SYNC 101: Hidden Benefits of High Refresh Rate G-SYNC


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Often overlooked is G-SYNC’s ability to adjust the refresh rate to lower fixed framerates. This can be particularly useful for games hard-locked to 60 FPS, and has potential in emulators to replicate unique signals such as the 60.1Hz of NES games, which would otherwise be impossible to reproduce. And due to the scanout speed increase at 100Hz+ refresh rates, an input lag reduction can be had as well…

Blur Buster's G-SYNC 101: Input Lag & Optimal Settings

The results show a considerable input lag reduction on a 144Hz G-SYNC display @60 FPS vs. a 60Hz G-SYNC display @58 FPS with first on-screen reactions measured (middle screen would show about half this reduction). And while each frame is still rendered in 16.6ms, and delivered in intervals of 60 per second on the higher refresh rate display, they are scanned in at a much faster 6.9ms per.



3709 Comments For “G-SYNC 101”

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brunobf
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brunobf

I’ve got a weird stuttering and ghosting in some games like Horizon when using FrameGen with G-Sync and V-Sync. I have a Samsung QN85A, 9800X3D, and RTX 5090. Disabling FrameGen solves the problem, but I don’t want to lose the functionality.

iLance1
Member
iLance1

I used the recommended settings, but when I turn VSync on in Silent Hill F, I get a lot of stuttering. When I turn it off, it runs fine. Does G-Sync still work or not?

Brayqzor
Member
Brayqzor

I’ve got a weird stuttering on all my games, everytime i move my mouse. I just played today without any issues and after coming back a few hours later, every game stutters rly hard when i move my mouse. i can feel it and see it on the fps indicator. i plumps to like 20 fps everytime the mouse is moving. I have this issue since day one, but only when i stream my screen on discord and it didnt bother me that way but now the issue happens even though i dont stream. again rly weird since i played a few hours ago without any issues. no update was made, as far as im aware off. I found out that Gsync is the issue. when i turn it completly off the stutters dont happen anymore, but i dont want to turn gsynch off. i use the windows and fullscreen mode. I rly need this fixed since almost every game needs mouse input. Anyone had this issue?

My System (Laptop). Ryzen 7 7435HS, RTX 4070

barry12345
Member
barry12345

Is there any explanation why my CS2 is capping at 200FPS with a 240Hz monitor?

Using Gsync + Vsync (nvcp) + reflex

With Vsync off it will uncap and I get around 300FPS so it should be able to cap at 225 like it does for everyone else?

With Vsync on the FPS is still capped at 200 even with a 225 limit set in nvcp.

barry12345
Member
barry12345

Overwatch with these settings caps at 239 instead of 225.

ItapL
Member
ItapL

In the Windows graphics settings, there’s an option for “Variable Refresh Rate.” Should I turn this on? (I’m not using an English version of Windows, so I’m not sure what the exact label says.)

My monitor has a real-time refresh rate display, but when I enable both G-SYNC and V-SYNC, it always shows the maximum refresh rate of 320 Hz in games — it doesn’t change dynamically. My G-SYNC settings are configured correctly, and V-SYNC is forced on through NVIDIA Profile Inspector.

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