Questions about G-Sync and refresh rate.

Talk about NVIDIA G-SYNC, a variable refresh rate (VRR) technology. G-SYNC eliminates stutters, tearing, and reduces input lag. List of G-SYNC Monitors.
Post Reply
maou42
Posts: 15
Joined: 18 Apr 2019, 19:08

Questions about G-Sync and refresh rate.

Post by maou42 » 02 Nov 2021, 00:15

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.

User avatar
jorimt
Posts: 2484
Joined: 04 Nov 2016, 10:44
Location: USA

Re: Questions about G-Sync and refresh rate.

Post by jorimt » 04 Nov 2021, 16:36

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.
(jorimt: /jor-uhm-tee/)
Author: Blur Busters "G-SYNC 101" Series

Displays: ASUS PG27AQN, LG 48CX VR: Beyond, Quest 3, Reverb G2, Index OS: Windows 11 Pro Case: Fractal Design Torrent PSU: Seasonic PRIME TX-1000 MB: ASUS Z790 Hero CPU: Intel i9-13900k w/Noctua NH-U12A GPU: GIGABYTE RTX 4090 GAMING OC RAM: 32GB G.SKILL Trident Z5 DDR5 6400MHz CL32 SSDs: 2TB WD_BLACK SN850 (OS), 4TB WD_BLACK SN850X (Games) Keyboards: Wooting 60HE, Logitech G915 TKL Mice: Razer Viper Mini SE, Razer Viper 8kHz Sound: Creative Sound Blaster Katana V2 (speakers/amp/DAC), AFUL Performer 8 (IEMs)

Post Reply