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RDNA2 FSR4 Performance vs FSR3 Quality (www.youtube.com)
submitted 3 weeks 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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[-] WereCat@lemmy.world 0 points 3 weeks ago

it’s not. The whole point of FG was to take advantage of high refresh rate monitors as most games can’t render 500FPS even on the fastest CPU… alas, here we are with games requiring FG to get you to 60FPS on most systems looks at Borderlands 4 and Monster Hunter Wilds

[-] victorz@lemmy.world 0 points 3 weeks ago

Right, but FG shouldn't be touching the CPU in any way, should it? It should be a local thing on the GPU transparent to the CPU, unless I'm misunderstanding how it works.

[-] WereCat@lemmy.world 1 points 3 weeks ago

It's not using CPU

[-] victorz@lemmy.world 1 points 3 weeks ago

Then I don't understand how it would affect the game loop negatively. I'll look into it though, will do some research.

this post was submitted on 28 Sep 2025
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