We all know the one and done method of Nvidia's G-Sync, where you enable both ULLM and Vertical Sync in the Nvidia Control Panel. Simple, no need to tinker with too much and can be applied globally.
As for AMD's Freesync I still confused how to set it up properly. I have read many forums and guides and I don't know what to stick with for AMD specifically. I'm mostly confused about one thing: the V-Sync Method
I have tested two configs that I think is the correct way to use Freesync, but I want another opinion. Which one of these is properly utilizes Freesync?
Config #1
AMD Freesync - AMD Optimized
Radeon Anti-Lag - Enabled
Radeon Enhanced Sync - Enabled
V-Sync Off In-game
Config #2
AMD Freesync - AMD Optimized
Radeon Anti-Lag - Enabled
Radeon Enhanced Sync - Disabled
Wait for Vertical Refresh - Off, unless application specifies
Frame Rate Target Control - (-3 Max Refresh Rate)
V-Sync On In-game
Optimal Freesync Settings?
Re: Optimal Freesync Settings?
I set and forget according to this recommended by AMD
https://www.amd.com/en/technologies/free-sync-settings
Use driver Vsync and In game Vsync off instead.
For input lag -3 Max Refresh Rate cap is what you want. Though I've seen some game doesn't like being RTSS capped. A Vsynced cap is absolutely fine. The input lag is totally negligible.
Other than those above config #2 is good.
https://www.amd.com/en/technologies/free-sync-settings
Enhanced Sync is horrible terms of fluidity. Often times there'll be annoying micro stutters.Config #1
AMD Freesync - AMD Optimized
Radeon Anti-Lag - Enabled
Radeon Enhanced Sync - Enabled
V-Sync Off In-game
Use driver Vsync and In game Vsync off instead.
FRTC is not reliable as it doesn't work in some games. If you want a FPS cap use RTSS.Config #2
AMD Freesync - AMD Optimized
Radeon Anti-Lag - Enabled
Radeon Enhanced Sync - Disabled
Wait for Vertical Refresh - Off, unless application specifies
Frame Rate Target Control - (-3 Max Refresh Rate)
V-Sync On In-game
For input lag -3 Max Refresh Rate cap is what you want. Though I've seen some game doesn't like being RTSS capped. A Vsynced cap is absolutely fine. The input lag is totally negligible.
Other than those above config #2 is good.
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Re: Optimal Freesync Settings?
AMD Freesync - AMD Optimized
Radeon Anti-Lag - Enabled
Radeon Enhanced Sync - Disabled
Wait for Vertical Refresh - Off, unless application specifies
V-Sync On In-game
Cap fps using in-game engine if possible.
Average latency for fps caps sorted from best to worst:
in-game, driver cap, rtss
FPS cap depends on monitor refresh rate.
240hz = 192fps
165hz = 140fps
144hz = 124fps
120hz = 106fps
For more info, watch this video by Graphically Challenged on YouTube:
This Setting is Ruining Your PC - Gsync/Freesync & FPS Caps
Radeon Anti-Lag - Enabled
Radeon Enhanced Sync - Disabled
Wait for Vertical Refresh - Off, unless application specifies
V-Sync On In-game
Cap fps using in-game engine if possible.
Average latency for fps caps sorted from best to worst:
in-game, driver cap, rtss
FPS cap depends on monitor refresh rate.
240hz = 192fps
165hz = 140fps
144hz = 124fps
120hz = 106fps
For more info, watch this video by Graphically Challenged on YouTube:
This Setting is Ruining Your PC - Gsync/Freesync & FPS Caps
Re: Optimal Freesync Settings?
Why such an aggressive frame cap below refresh rate ? With Vsync On only 3 frames below refresh will be suffice for proper VRR.sky_dynasty wrote: ↑21 Jan 2024, 14:24
FPS cap depends on monitor refresh rate.
240hz = 192fps
165hz = 140fps
144hz = 124fps
120hz = 106fps
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Re: Optimal Freesync Settings?
VRR used by g-sync and freesync displays needs 1ms of additional time to work.Stizzie wrote: ↑24 Jan 2024, 05:30Why such an aggressive frame cap below refresh rate ? With Vsync On only 3 frames below refresh will be suffice for proper VRR.sky_dynasty wrote: ↑21 Jan 2024, 14:24
FPS cap depends on monitor refresh rate.
240hz = 192fps
165hz = 140fps
144hz = 124fps
120hz = 106fps
real refresh rate when using variable refresh rate / g-sync / freesync
to get no tearing, you must add 1ms
1000ms (1 second) / 138fps (display refresh) = 7.246ms
7.246ms + 1ms (of freesync) = 8.246ms
new framerate therefore is
1000ms (1 second) / 8.246ms = 121.27fps
round down to nearest even number -> 120
240hz = 192fps
165hz = 140fps
144hz = 124fps
120hz = 106fps
My source for the information above:
https://www.youtube.com/watch?v=1OQjqWOm1uA
Re: Optimal Freesync Settings?
real refresh rate when using variable refresh rate / g-sync / freesync
to get no tearing, you must add 1ms
Vsync coupled with VRR already taken care of tearing. Only a frame cap needed to ensure FPS never reach the VRR ceeling. I also noticed games paced better ( terms of frame time ) when Vsync enabled.
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Re: Optimal Freesync Settings?
Correct.Stizzie wrote: ↑31 Jan 2024, 00:11Vsync coupled with VRR already taken care of tearing. Only a frame cap needed to ensure FPS never reach the VRR ceeling. I also noticed games paced better ( terms of frame time ) when Vsync enabled.real refresh rate when using variable refresh rate / g-sync / freesync
to get no tearing, you must add 1ms
For Nvidia graphics cards:
Using the data given by the video I quoted above, when combining VRR with v-sync (in nvidia control panel), you only need to add 0.3ms of latency for VRR to work correctly. Therefore the FPS caps should be:
240hz = 233fps
165hz = 156fps
144hz = 138fps
120hz = 115fps
Reflex caps fps automatically when used with VRR and v-sync.
AMD graphics cards need 1ms additional time for VRR to work. Therefore the fps caps (if needed) are lower.
240hz = 192fps
165hz = 140fps
144hz = 124fps
120hz = 106fps
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My display is 165Hz freesync premium. Fps cap should be 140. GPU - RX 6700 XT.
I tested some games using RTSS (frametime on in OSD, text, graph) to check for frametime variances. AMD Freesync and v-sync were turned on.
Rise of the Tomb Raider
Unstable frametime when fps between 142-146, both in full screen exclusive and borderless fullscreen.
vsync in amd adrenalin and in-game did not affect this range.
fps cap @ 140 fixed frametime variances.
Overwatch 2
Unstable frametime when fps between 142-146
fps cap @ 136 works best to remove frametime variances.
Far Cry: New Dawn
Unstable frametime when fps between 140-144
fps cap @ 136 works best to remove frametime variances.
Re: Optimal Freesync Settings?
That's not a source of information, that's a source of misinformation. That 1ms rule is utter nonsense.
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Re: Optimal Freesync Settings?
Today I used G-SYNC Pendulum Demo to test my LG 27GP850-B 165 Hz monitor. My graphics card is AMD 6700 XT.
Below 165 fps, the bar showed no tearing. As soon as I set fps to 165 and above, there was some tearing.
Enhanced sync resulted in some micro stutters.
For the smoothest settings, I turned on v-sync and capped fps to 158 (I am going to use the same fps cap as Nvidia Reflex). When I let my fps go above my display refresh rate with v-sync on, the frametime displayed in RTSS was not stable.
Below 165 fps, the bar showed no tearing. As soon as I set fps to 165 and above, there was some tearing.
Enhanced sync resulted in some micro stutters.
For the smoothest settings, I turned on v-sync and capped fps to 158 (I am going to use the same fps cap as Nvidia Reflex). When I let my fps go above my display refresh rate with v-sync on, the frametime displayed in RTSS was not stable.