this post was submitted on 28 Sep 2025
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RDNA2 FSR4 Performance vs FSR3 Quality (www.youtube.com)
submitted 1 day ago by WereCat@lemmy.world to c/linux_gaming@lemmy.world
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I was trying out FSR4 on my RX 6800 XT, Fedora 42. Works really well and it easily beats FSR3 in visuals even on Performance. It does have a significant performance hit vs FSR3 though but it still works out to be a bit faster than a native rendering on Quality.

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[–] victorz@lemmy.world 1 points 21 hours ago (2 children)

It seems that the input lag is more perceived, rather than actually experienced, from what I understand. Like if you go from 30 to 120 fps, you expect the input lag to decrease, but since it stays the same (or slightly worse), you perceive it to be much more severe.

[–] DarkAri@lemmy.blahaj.zone 1 points 5 hours ago (1 children)

The frame rate isnt going from 30 to 120 FPS. It's actually going from 30 to like 20. The rendered frames are different then the CPU frames which handles the game loops, (physics, input, simulation, etc)

[–] victorz@lemmy.world 1 points 50 minutes ago

Not sure we have the same definition of frames here.

[–] WereCat@lemmy.world 1 points 21 hours ago (1 children)

yes, that’s why FPS in this case is not a good measure of performance

[–] victorz@lemmy.world 2 points 10 hours ago

Very much so. The very reason why we want more fps is to have less input lag, that's my personal take anyway. That's the only reason why I have a beefy computer, so the game can respond quicker (and give me feedback quicker as well).