75hz and 75fps...

[kofi]

So i'm buying a new 75hz monitor, i know my computer can support well over 75fps but i heard that if the framerate doesnt matche the refresh rate (even when the fps higher than refresh rate) causes tearing. Do i really need to lock my games to 75hz? Or can i just keep them rolling on idk, maybe 200 or so fps?

[Omega]

You can get tearing ever below 75fps on a 75Hz screen. Run your games unlocked unless you are having noticable tearing, when you do have tearing enable Vsync in the game's graphical settings.

[Sapph]

The tearing is rarely so bad that it would be truly noticeable. But if you do notice bad tearing, you can use VSync to lock the framerate, if the game doesn't have it's own framelimiter.

[kofi]

Omega님이 먼저 게시:

You can get tearing ever below 75fps on a 75Hz screen. Run your games unlocked unless you are having noticable tearing, when you do have tearing enable Vsync in the game's graphical settings.

So i'm fine if i keep my fps unlocked? And i enable Vsync if i see tearing?

Is it better to enable ingame Sync or monitor Sync? (in my case, FreeSync)

[Viper]

If you refresh is 75 hz. That is the maximum number of frames that will be displayed on your monitor. It doesn't matter if your GPU draws 200 frames. Your monitor will only output 75 of them. Screen tearing results from the GPUs output of frames not matching the monitors displaying of them...causing partial frames to be outputted. If you are drawing 200 frames on a 75 HZ monitor you will get screen tearing. The solution is to set VSync which sets the GPU to be synced to the monitors refresh rate.

[Omega]

Freesync only works on AMD GPUs.

An alternative to Freesync for Nvidia would be Fastsync which you can enable in the GPU control panel, it leaves the FPS unlocked while minimizing tearing.


Don't worry so much about screen tearing.. Run the FPS unlocked unless you are getting really annoyed by tearing. Vsync has downsides, it makes the game feel very unresponsive.

Viper님이 먼저 게시:

If you refresh is 75 hz. That is the maximum number of frames that will be displayed on your monitor. It doesn't matter if your GPU draws 200 frames. Your monitor will only output 75 of them. SWcreen tearing results from the GPUs oiutput of frames not matching th emonitors displaying of them...causing patial frames to be drawn. If you are drawing 200 frames on a 75 HZ monitor you will get screen tearing. The solution is to set VSync which sets the GPU to by synced to the monitors refresh rate.

Incorrect.

75hz monitor can display more then 75 frames per second, this is what tearing is. Before the monitor is done rendering frame #1 frame #2 is pushed to the screen and the monitor uses the last pushed frame to complete the sync, causing half of frame #1 to be displayed and half of frame #2 to be displayed.

You can get tearing even at 30fps on a 75Hz screen since the same rules as stated above will still apply. Frame #2 is pushed before the monitor finishes displaying frame #1, the GPU is not pushing frames every 0.3 secs to get the game to run at 30fps, it pushes one whenever it's ready. The game is running at 30fps on a 75hz screen and frame #2 is pushed 0.008 secs after frame 3 you get a tear.

Making sure a frame is pushed only every 0.13 secs (or longer) is what Vsync will do on this 75Hz screen.

[Revelene]

Tearing happens anytime the frames are not synched. How noticeable depends on multiple factors.

High refresh rate monitors will tend to have less noticeable tearing with frames higher than refresh, due to the extra amount of full frames actually able to display per second. The same frame rate would have more noticeable tearing the lower the refresh rate.

Lower frames than refresh rate tend to have judder, on top of tearing, due to not having a full frame per refresh. It only gets worse the lower the frame rate gets.

Sapph님이 먼저 게시:

The tearing is rarely so bad that it would be truly noticeable. But if you do notice bad tearing, you can use VSync to lock the framerate, if the game doesn't have it's own framelimiter.

Tearing most certainly can easily be noticeable. If the timing ends up with tearing overtop of a screen element that you use, or if frames are lower and you get that infamous judder. Plenty of things related to frame rate, refresh rate, and timing, that will absolutely ruin a game experience.

Vsync isn't a frame lock. It is a synchronization of frames and refresh. It does a lot more than a simple frame limiter.

[TehSpoopyKitteh]

Omega님이 먼저 게시:

Freesync only works on AMD GPUs.

An alternative to Freesync for Nvidia would be Fastsync which you can enable in the GPU control panel, it leaves the FPS unlocked while minimizing tearing.


Don't worry so much about screen tearing.. Run the FPS unlocked unless you are getting really annoyed by tearing. Vsync has downsides, it makes the game feel very unresponsive.

Viper님이 먼저 게시:

If you refresh is 75 hz. That is the maximum number of frames that will be displayed on your monitor. It doesn't matter if your GPU draws 200 frames. Your monitor will only output 75 of them. SWcreen tearing results from the GPUs oiutput of frames not matching th emonitors displaying of them...causing patial frames to be drawn. If you are drawing 200 frames on a 75 HZ monitor you will get screen tearing. The solution is to set VSync which sets the GPU to by synced to the monitors refresh rate.

Incorrect.

75hz monitor can display more then 75 frames per second, this is what tearing is. Before the monitor is done rendering frame #1 frame #2 is pushed to the screen and the monitor uses the last pushed frame to complete the sync, causing half of frame #1 to be displayed and half of frame #2 to be displayed.

You can get tearing even at 30fps on a 75Hz screen since the same rules as stated above will still apply. Frame #2 is pushed before the monitor finishes displaying frame #1, the GPU is not pushing frames every 0.3 secs to get the game to run at 30fps, it pushes one whenever it's ready. The game is running at 30fps on a 75hz screen and frame #2 is pushed 0.008 secs after frame 3 you get a tear.

Making sure a frame is pushed only every 0.13 secs (or longer) is what Vsync will do on this 75Hz screen.

My TV interpolates at 120FPS while displaying at 60Hz. Usually in modern games I have to cap my frame rate to 120FPS before any screen tearing is noticed. In older games and engines, I have to lock it at 60FPS.

Point is that frame rate cap is usually game and monitor depdnent.

[Clan Wolf]

you can get screen tearing even from a unstable bios, rolling back helps duno how much though. like updating a bios on a old board, asus am3+ has bios updates as recent as 2017.