3 articles · Updated · digitalfoundry.net · Jun 22
Summary
Pierre-Loup Griffais said Valve is working with AMD to bring FSR 4 to Steam Machine, but the upscaler will not be ready when the device launches.
FSR 4 matters because FSR 3 can be heavy on the handheld—especially at 1440p—while the newer version delivers better image quality, letting games run at lower internal resolutions for steadier frame rates.
Valve said games already using a new enough FSR SDK should switch over automatically once Proton adds support, mirroring Windows rather than today's manual Linux launch-command workaround.
The confirmation follows months of mixed signals over hardware support: AMD first framed FSR 4 as Radeon 9000-only, then set a July window for Radeon 7000, while leaks suggested it also runs on older RDNA architectures.