this post was submitted on 18 Nov 2025
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[–] Die4Ever@retrolemmy.com 2 points 19 hours ago* (last edited 19 hours ago) (1 children)

https://gpuopen.com/fidelityfx-super-resolution-4/

uses the hardware-accelerated feature of the AMD RDNA™ 4 architecture

AMD FidelityFX™ Super Resolution 4 upscaling requires an AMD Radeon RX 9000 Series GPU or better and can only be used on appropriate hardware.

Requirements

[FSR 4 Upscaling] AMD Radeon™ RX 9000 Series and above

It's possible they add compatibility at a later time (with reduced performance and/or quality due to lack of hardware acceleration), but they haven't announced anything like that currently

[–] Deconceptualist@leminal.space 2 points 18 hours ago* (last edited 18 hours ago) (1 children)

It's not a hard requirement. Gamers have used the SDK to get FSR4 working on Steam Deck. Here's a video of it in action.

https://www.youtube.com/watch?v=95N6-2U5YQo

TL;DW -- It's good to have as an option but not necessarily better than FSR3 on Deck due to tradeoffs. Depends on the game.

[–] Die4Ever@retrolemmy.com 1 points 1 hour ago

Yeah you can hack it in but that's not official, which results in what you see: performance is not so great. That video only shows a small performance loss because FSR4 is only outputting to 720p, but making FSR4 output to 4k (like a normal TV) is a much bigger demand. But maybe some specific optimizations can be made.