G-Sync on FreeSync Monitor with less than 2.4:1 range
Posted: 16 Jan 2019, 09:48
Hi everyone,
now that G-Sync can be enabled on FreeSync monitors I want to set it up on my LG 38UC99-W. Sadly this monitor is only supposed to use FreeSync between 52 and 75Hz. I can enable G-Sync in the nvidia control panel and between about 58 and 75 fps everything seems very smooth. Anything below shows massive stuttering so far. I have also enabled V-Sync in the control panel and disabled it in-game. I'm only interested in getting rid of the stutter for now.
My question is: what happens here if I drop below the minimum FreeSync range of 52Hz? A display with a range of 2.4:1 would be able to just scanout a frame twice, effectively doubling the framerate and refresh rate. My monitor, however, can't double anything between 37.5 and 52fps, because that would exceed the maximum refresh rate of 75Hz.
So will V-Sync kick in between 37.5 and 52fps? And will G-Sync activate again below 37.5fps?
In the past I have been using Adaptive Sync at 60Hz, so that I wouldn't get capped at 30fps if my pc wasn't able to run a game at 60+fps with V-Sync enabled. Would I be better off if I turned off V-Sync in the control panel and just used a FPS limiter in order to avoid the 30fps cap when my game drops below 52fps?
Could I possibly extend the lower limit of my FreeSync range with the Custom Resolution Utility, like AMD users can? On my old MacBook pro the Monitor will only work at 30Hz, so I know that it can handle lower refresh rates.
now that G-Sync can be enabled on FreeSync monitors I want to set it up on my LG 38UC99-W. Sadly this monitor is only supposed to use FreeSync between 52 and 75Hz. I can enable G-Sync in the nvidia control panel and between about 58 and 75 fps everything seems very smooth. Anything below shows massive stuttering so far. I have also enabled V-Sync in the control panel and disabled it in-game. I'm only interested in getting rid of the stutter for now.
My question is: what happens here if I drop below the minimum FreeSync range of 52Hz? A display with a range of 2.4:1 would be able to just scanout a frame twice, effectively doubling the framerate and refresh rate. My monitor, however, can't double anything between 37.5 and 52fps, because that would exceed the maximum refresh rate of 75Hz.
So will V-Sync kick in between 37.5 and 52fps? And will G-Sync activate again below 37.5fps?
In the past I have been using Adaptive Sync at 60Hz, so that I wouldn't get capped at 30fps if my pc wasn't able to run a game at 60+fps with V-Sync enabled. Would I be better off if I turned off V-Sync in the control panel and just used a FPS limiter in order to avoid the 30fps cap when my game drops below 52fps?
Could I possibly extend the lower limit of my FreeSync range with the Custom Resolution Utility, like AMD users can? On my old MacBook pro the Monitor will only work at 30Hz, so I know that it can handle lower refresh rates.