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I see no difference when VRR and Vsync is off

Posted: 30 Sep 2023, 10:03
by Clyff
Hello, i've recently got the corsair OLED monitor and whiel the vrr flicker wasnt to bad i turned off VRR and Vsync and so far i see absolutely no tearing? Maybe i just dont see it but shouldnt there be noticeable tearing like everyone makes a huge thing out of it?
I tested multiple games and i dont see it, does anyone know why?

Re: I see no difference when VRR and Vsync is off

Posted: 30 Sep 2023, 10:11
by RealNC
How much FPS do you get? If you play like a 10 year old game at 400FPS, tearing is going to be hard to notice unless you're looking for it.

And yes, if vsync and VRR really are off, and you're not running a windowed mode game, there is tearing. If there wasn't, there would not be any need to have a vsync option in the first place.

Re: I see no difference when VRR and Vsync is off

Posted: 30 Sep 2023, 10:32
by Clyff
RealNC wrote:
30 Sep 2023, 10:11
How much FPS do you get? If you play like a 10 year old game at 400FPS, tearing is going to be hard to notice unless you're looking for it.

And yes, if vsync and VRR really are off, and you're not running a windowed mode game, there is tearing. If there wasn't, there would not be any need to have a vsync option in the first place.
Well in Warzone i have around 170, Cyberpunk a bit less and others run at 240fps. Is Vsync still aplied on a windowed mode game?

Re: I see no difference when VRR and Vsync is off

Posted: 30 Sep 2023, 13:49
by RealNC
Clyff wrote:
30 Sep 2023, 10:32
Is Vsync still aplied on a windowed mode game?
In the past yes, but nowadays it depends on the game and the GPU. Windowed mode can have vsync off if multiplane overlays work in the game and your GPU.

But anyway, you can try an FPS limit of something like 70, just to test. Tearing should be quite visible at that FPS.

Re: I see no difference when VRR and Vsync is off

Posted: 30 Sep 2023, 14:19
by Clyff
RealNC wrote:
30 Sep 2023, 13:49
Clyff wrote:
30 Sep 2023, 10:32
Is Vsync still aplied on a windowed mode game?
In the past yes, but nowadays it depends on the game and the GPU. Windowed mode can have vsync off if multiplane overlays work in the game and your GPU.

But anyway, you can try an FPS limit of something like 70, just to test. Tearing should be quite visible at that FPS.
Alright thank you. Would you recommend leaving gsync on and living with the flickering or turning it off and live with the bit tearing?
Also does vsync add significant amount of input lag at 240hz? Cant find a clear answer on google.

Re: I see no difference when VRR and Vsync is off

Posted: 30 Sep 2023, 15:50
by jorimt
Clyff wrote:
30 Sep 2023, 14:19
Also does vsync add significant amount of input lag at 240hz? Cant find a clear answer on google.
Uncapped standalone double buffer V-SYNC (where the framerate can be sustained at/above the refresh rate) will typically result in 2 to 4 frames of additional latency. At 240Hz, this an added ~8.4 to 16.8ms (usually closer to the former).

Re: I see no difference when VRR and Vsync is off

Posted: 30 Sep 2023, 16:29
by Clyff
jorimt wrote:
30 Sep 2023, 15:50
Clyff wrote:
30 Sep 2023, 14:19
Also does vsync add significant amount of input lag at 240hz? Cant find a clear answer on google.
Uncapped standalone double buffer V-SYNC (where the framerate can be sustained at/above the refresh rate) will typically result in 2 to 4 frames of additional latency. At 240Hz, this an added ~8.4 to 16.8ms (usually closer to the former).
So it is like i would play on 60hz? Do you know if i disable vsync in NVCP is it truly off everywhere? Is there a way to check for it since i dont see tearing so far when playing games normally

Re: I see no difference when VRR and Vsync is off

Posted: 30 Sep 2023, 16:39
by jorimt
Clyff wrote:
30 Sep 2023, 16:29
So it is like i would play on 60hz?
No, the higher the refresh rate, the lower latency penalty V-SYNC has. 2-4 frames at 60Hz is an additional ~33.2 to 66.4ms with standalone V-SYNC in the same scenario I mentioned previously.

240Hz is much lower latency than 60Hz in any scenario.
Clyff wrote:
30 Sep 2023, 16:29
Do you know if i disable vsync in NVCP is it truly off everywhere? Is there a way to check for it since i dont see tearing so far when playing games normally
Like RealNC said, it depends.

If you're playing in legacy borderless or windowed in Win 10 without MPO or the like, for instance, DWM V-SYNC will apply no matter what you have NVCP V-SYNC set to.

You'd have to be more specific about the game you're playing, what window mode you have it set to, what OS you're running, and whether you've made any OS-level adjustments to settings like MPO.

Re: I see no difference when VRR and Vsync is off

Posted: 30 Sep 2023, 16:47
by Clyff
jorimt wrote:
30 Sep 2023, 16:39
Clyff wrote:
30 Sep 2023, 16:29
So it is like i would play on 60hz?
No, the higher the refresh rate, the lower latency penalty V-SYNC has. 2-4 frames at 60Hz is an additional ~33.2 to 66.4ms with standalone V-SYNC in the same scenario I mentioned previously.

240Hz is much lower latency than 60Hz in any scenario.
Clyff wrote:
30 Sep 2023, 16:29
Do you know if i disable vsync in NVCP is it truly off everywhere? Is there a way to check for it since i dont see tearing so far when playing games normally
Like RealNC said, it depends.

If you're playing in legacy borderless or windowed in Win 10 without MPO or the like, for instance, DWM V-SYNC will apply no matter what you have NVCP V-SYNC set to.

You'd have to be more specific about the game you're playing, what window mode you have it set to, what OS you're running, and whether you've made any OS-level adjustments to settings like MPO.
So currently im playing stuff like Warzone, Valorant, League, and some RPGs and MMOs on Windows 11. I think most of the games are just Borderless Windowed i dont play a single game in exclusive fullscreen.
As for MPO i never heard of it.
So as the whole thing is really confusing on windows 11 in borderless fullscreen in especially Warzone and Valorant would i have any really impactful disadvantage even if vsync were on, do you even feel the impact of an additional 8-16ms of input lag?

Edit: ive tested Sea of Thieves which runs in Fullscreen at 30 FPS capped and dont see tearing so idk

Re: I see no difference when VRR and Vsync is off

Posted: 30 Sep 2023, 17:01
by jorimt
Clyff wrote:
30 Sep 2023, 16:47
So currently im playing stuff like Warzone, Valorant, League, and some RPGs and MMOs on Windows 11. I think most of the games are just Borderless Windowed i dont play a single game in exclusive fullscreen.

As for MPO i never heard of it.
A couple of the games you mentioned are DX12, which uses a newer flip model that makes borderless fullscreen behave more like traditional exclusive fullscreen. In other words, it can tear with V-SYNC off.

As for MPO, if you've never heard of it, it's probably already enabled. It too allows legacy borderless/window mode to tear when V-SYNC is off.

Finally, there's an option in newer versions of Windows 11 that makes legacy borderless/windowed mode behave more like exclusive fullscreen (similar to the DX12 flip model):
https://support.microsoft.com/en-us/win ... 389e535952
Clyff wrote:
30 Sep 2023, 16:47
do you even feel the impact of an additional 8-16ms of input lag?
"Do you?" is the more important question in this case. Try the app in the below thread to get a better idea:
viewtopic.php?f=10&t=9675

What I will say is, G-SYNC is primarily for players that can't tolerate tearing artifacts and want the most consistent frame delivery within the refresh rate without adding the stutter or latency standalone V-SYNC does.

The lowest latency scenario (even if not by much at 240Hz and up) still will always be no-sync + uncapped framerate + GPU usage below 99%.
Clyff wrote:
30 Sep 2023, 16:47
Edit: ive tested Sea of Thieves which runs in Fullscreen at 30 FPS capped and dont see tearing so idk
The higher the refresh rate, the more difficult it is to see tearing artifacts:
https://blurbusters.com/gsync/gsync101- ... ettings/6/

At 240Hz it becomes harder to tell, especially compared to 60Hz, and especially if you aren't sensitive to tearing artifacts to begin with.