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Questions about G-Sync and refresh rate.

Posted: 02 Nov 2021, 00:15
by maou42
Hi

Sorry for posting this before in a different channel...

I have just bought an LG 27GL850 b. Assuming that I configure G-Sync the way it is recommended to configure it on this site (force V-Sync on in Nvidia control panel, off in-game), If I am playing a game that dips to let's say 97 fps at its worst.

Is it better to:

1- Set the refresh rate to 144hz in Nvidia control panel/ windows. Set the refresh rate to 144hz in game and forget about it

2- Set the refresh rate to 144hz in Nvidia control panel/ windows. Set refresh rate to 100hz in game (assuming it is an option)

3- Set the refresh rate to 144hz in Nvidia control panel/ windows. Set refresh rate at 144hz in game but cap framerate in RTSS to 97 (or 94...)

4- Set the refresh rate to 100hz in Nvidia control panel/ windows. Set refresh rate to 100hz in game or 94-97 in RTSS

5- Get a Life. Go out and stop worrying about my very first world problem.

Any suggestion appreciated. I want to minimise fluctuations in the refresh rates/ possible stuttering generated by it. Not worried about actual fps, anything above 60 fps makes me happy.

Second question (Sorry!)

I have read a post by Mark stating that using 8bit colour + FRC (so 10 bits in Nvidia control panel) is not as bad as many people claim it is (flicker). I realise that most software and games do not use 10 bits but I want to use it if possible (I won't use HDR).
Is my panel 10bits solution viable enough to leave it on?

Many thanks to anyone reading or attempting to help.

Re: Questions about G-Sync and refresh rate.

Posted: 04 Nov 2021, 16:36
by jorimt
maou42 wrote:
02 Nov 2021, 00:15
Is it better to:
Use #3 with G-SYNC. Setting your physical refresh lower will only increase scanout time and reduce maximum refresh rate, slowing overall frame delivery, regardless of achievable framerate.

With G-SYNC, 97 FPS at 144Hz has a 6.9ms scan-in time per frame, whereas, say, 97 FPS at 100Hz has a 10ms scan-in time per frame. The lower the physical refresh rate is set, the slower the scan-in time per frame.