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

  • Valve recently added support for the new FSR version to the Proton Experimental branch of its Windows compatibility tool for SteamOS, suggesting the upcoming Steam Machine may feature the technology at launch.
  • Unlike the previous FSR version, which prioritized gaming performance, the new version focuses on image quality by leveraging AI acceleration to eliminate shimmering and visual artifacts.
  • The Steam Machine utilizes a semi-custom GPU based on RDNA architecture, featuring 28 compute units, a 2.45GHz boost clock, and 8GB of DDR6 VRAM.
  • AMD plans to expand FSR compatibility to RDNA GPUs in July, with plans to port the technology to older RDNA cards next year.
  • While at the bleeding edge of development, Proton Experimental is not yet ready for a wider release on the Steam Machine.
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AMD has released FSR 4.1 with the Adrenaline 26.6.2 driver for all discrete Radeon RX-7000 graphics cards – around a month earlier than originally announced.

Just as surprising as the announcement in mid-May, the official launch of FSR 4.1 took place today on maps of the Radeon RX-7000 series based on the RDNA-3 architecture.

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pcgameshardware.de broke the news on Monday, June 22, 2026.
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