Tracked topic
Yes. The primary article reports that YouTuber ETA Prime found the Arc B580 "worked on the first boot up" with the SteamOS 3.9 beta and no installation workarounds were required. The card ran several games at playable frame rates, though a few issues remain such as XeSS only running on shader cores under Linux. Answered
SteamOS now works on the Intel Arc B580 without workarounds on the latest betaYes. The primary article reports that SteamOS is now compatible with both AMD and Intel graphics cards, leaving NVIDIA as the only mainstream GPU maker not yet supported. The article also notes that NVIDIA is working with Valve to develop GeForce compatibility (see related article "Valve is working with NVIDIA to make GeForce GPUs compatible with SteamOS"). Answered
SteamOS now works on the Intel Arc B580 without workarounds on the latest betaIn Geekbench 6.7.1, Windows 11 showed a 3.3% lead over SteamOS in the single-core benchmark and a 22.1% lead in the multi-core benchmark. Answered
Windows 11 tested on Steam Machine, provides nearly identical gaming performance to SteamOSThe article says the primary reason to install Windows 11 is to play games that SteamOS cannot run due to Linux incompatibility. It notes performance differences are minor overall, so compatibility with Windows-only titles is the main benefit. Answered
Windows 11 tested on Steam Machine, provides nearly identical gaming performance to SteamOS… Support was technically baked in with SteamOS 3.8; however, support was geared primarily towards Arc iGPUs for handhelds that used Intel SoCs. If you wanted to run an Arc card on SteamOS, you had to use one of several workarounds to get SteamOS to install with the card. …
… YouTuber ETA Prime tested SteamOS beta 3.8.7 on a Lunar Lake-based MSI Claw 8 AI+, showing SteamOS functioning well on Intel hardware. …
… Previously, if you wanted to install SteamOS 3 - the version of SteamOS that shipped with the Steam Deck - on anything other than the Deck, you would have to modify the OS to do so. …
… In Geekbench 6.7.1, Windows 11 had a 3.3% lead over SteamOS in the single-core benchmark, but in the multi-core benchmark, Windows 11 had a whopping 22.1% lead over SteamOS. This is the only time Windows 11 has had such a massive lead over SteamOS. …
… The timing is important because SteamOS is no longer just a Steam Deck thing. With the Steam Machine now officially out and SteamOS 3.8 pushing expanded desktop PC compatibility, Valve is clearly trying to grow SteamOS into something bigger. …
… Valve says the SteamOS installer's dual-boot wizard is not ready yet and will ship alongside a future SteamOS update. Anyone hoping to switch between SteamOS and Windows on the same machine should wait rather than jump in now. …
… Valve introduced a per-game option to fix this, highlighting challenges in adapting SteamOS beyond its original Steam Deck design. …
… That update has now rolled out in SteamOS 3.8.9 Beta: Second Clutch patch notes , which also state that support for the Steam Machine has been added to SteamOS. …
TL;DR: New Geekbench benchmarks under the "Fremont" codename reveal Valve's Steam Machine uses a Linux-based SteamOS and a custom 6-core, 12-thread AMD CPU with high clock speeds. …