Valve confirms FSR 4 for Steam Machine as AMD releases FSR 4.1 for RDNA 3 GPUs

Trying forward: Valve has confirmed that its Steam Machine will help AMD’s FSR 4 upscaling expertise. In an interview with Digital Foundry, SteamOS developer Pierre-Loup Griffais mentioned there isn’t a official launch timeline but, however hinted that it may roll out “on the identical schedule (because the Home windows launch).”

Screenshots posted on X by YouTuber and XR analyst Brad Lynch seem to indicate that Valve is already testing help for FSR 4.1 upscaling within the Proton Experimental construct for SteamOS. In response to a SteamDB entry dated June 22, AMD has added FSR 4.1.1 INT8 DLL information to Steam, suggesting the corporate is working with Valve to convey its newest upscaling expertise to SteamOS units.

– Brad Lynch (@SadlyItsBradley) June 22, 2026

Valve has since deleted the manifest from the Proton Experimental depot, suggesting the replace was pushed out sooner than meant. Nonetheless, a Redditor who managed to obtain the DLL earlier than it was eliminated claims this model of FSR works even on RDNA 3.5 {hardware}. They added that the DLL features a new INT8 model of FSR 4.1.1 and can be utilized with OptiScaler to improve video games from FSR 3.

Screenshots shared by Redditor AthleteDependent926 seem to indicate FSR 4.1 engaged on at the very least three Radeon GPUs throughout a number of RDNA generations. The brand new DLL reportedly delivers easy gameplay on the RDNA 3-based Radeon RX 7800 XT and RDNA 3.5-based Radeon 890M, however on the RDNA 2-based 6900 XT, it nonetheless reveals the identical shimmering and ghosting points seen within the older DLL.

Valve might have confirmed FSR 4 for Steam Machine, however AMD has not but formally confirmed FSR 4.1 help for Proton. Nonetheless, earlier in the present day, the corporate launched the Adrenalin 26.6.2 WHQL driver, including help for FSR 4.1 on all RDNA 3-based GPUs, together with the Radeon RX 7000 sequence. The transfer expands help for AMD’s newest upscaling expertise to greater than 300 video games.

In response to AMD’s Jack Huynh, the corporate can be creating “light-weight machine studying fashions” to convey FSR 4.1 to RDNA 3 APUs. The announcement might be welcome information for RDNA 3 APU customers, who had been beforehand uncertain whether or not FSR 4.1 would work on built-in graphics options in price range programs.

– Jack Huynh (@jackhuynh) June 22, 2026

AMD additionally plans to increase FSR 4.1 help to RDNA 2 GPUs subsequent yr, because it continues optimizing its AI fashions to run on older graphics {hardware} with out devoted AI accelerators. There isn’t a precise rollout timeline but, however RDNA 2 customers are more likely to respect AMD’s choice to convey its newest upscaling expertise to {hardware} that’s a number of years previous.