this post was submitted on 28 Jun 2023
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Wayland with VRR should give you very comparable latency to X11, but if you have a monitor without support for it then X11 is definitely better.
Do you know what happens when games run above your refresh rate? Is VRR still engaged there or does it fall back to Wayland's FIFO Vsync?
Afaik, it will fall back to FIFO. Fortunately, if you're using a high refresh rate monitor, by the time you reach this point, FIFO will be adding a very small amount of latency. I generally choose to limit my games to my refresh rate when making use of VRR, as it leads to a good combination of low and consistent latency, rather than the spikes you will face when playing with it unlocked.