Valve’s newly released Windows drivers appear to make Windows 11 a viable alternative on the 2026 Steam Machine, with early testing showing gaming performance generally close to SteamOS rather than a dramatic loss. VideoCardz reports that ETA PRIME installed Windows 11 on Valve’s compact PC and found narrow wins for each operating system across a small game set.
The test system had been upgraded from 16GB to 64GB of DDR5-5600 memory, so the figures should not be treated as stock-machine results. Windows identified the Steam Machine’s semi-custom six-core Zen 4 processor as an AMD 1772, while its 8GB RDNA 3 graphics hardware appeared as a Radeon RX 7600-series GPU.
ETA PRIME recorded higher Geekbench 6 scores under Windows 11: 3.3% ahead in single-core and 22.1% in multi-core performance. That result comes with an important qualification: the SteamOS run used desktop mode, which may not apply the same CPU performance behavior as SteamOS gaming mode.
Gaming gaps were much smaller. In Cyberpunk 2077, SteamOS led at 1080p and 1440p, reaching 74 FPS and 45 FPS respectively, versus Windows at 68 FPS and 43 FPS. Windows pulled ahead at 4K, but only by 20 FPS to 18 FPS—a result that underlines the limits of native 4K gaming on this hardware.
Shadow of the Tomb Raider was essentially a tie: Windows led by two frames per second at 1080p and 4K, while SteamOS held a two-FPS advantage at 1440p. In Horizon Zero Dawn, Windows was ahead by a single frame at 1080p and by two frames at 4K; SteamOS took the 1440p run by one frame.
That is a more useful result than a single headline winner. Windows 11 does not appear to impose a consistent performance penalty on the Steam Machine, but SteamOS remains competitive and, in some titles, faster.
That distinction matters for administrators and tinkerers. Windows expands access to non-Steam launchers, PC Game Pass, native anti-cheat compatibility and ordinary desktop workloads, but it also moves system setup, driver maintenance and recovery onto the owner. SteamOS remains the appliance-like default, while Windows turns the box into a compact AMD gaming PC with Valve-specific driver dependencies.
For prospective Windows users, the practical message is straightforward: install Windows only if its software compatibility is needed, not because these early benchmarks promise a broad performance upgrade.
The test system had been upgraded from 16GB to 64GB of DDR5-5600 memory, so the figures should not be treated as stock-machine results. Windows identified the Steam Machine’s semi-custom six-core Zen 4 processor as an AMD 1772, while its 8GB RDNA 3 graphics hardware appeared as a Radeon RX 7600-series GPU.
Windows edges CPU tests; SteamOS still trades blows in games
ETA PRIME recorded higher Geekbench 6 scores under Windows 11: 3.3% ahead in single-core and 22.1% in multi-core performance. That result comes with an important qualification: the SteamOS run used desktop mode, which may not apply the same CPU performance behavior as SteamOS gaming mode.Gaming gaps were much smaller. In Cyberpunk 2077, SteamOS led at 1080p and 1440p, reaching 74 FPS and 45 FPS respectively, versus Windows at 68 FPS and 43 FPS. Windows pulled ahead at 4K, but only by 20 FPS to 18 FPS—a result that underlines the limits of native 4K gaming on this hardware.
Shadow of the Tomb Raider was essentially a tie: Windows led by two frames per second at 1080p and 4K, while SteamOS held a two-FPS advantage at 1440p. In Horizon Zero Dawn, Windows was ahead by a single frame at 1080p and by two frames at 4K; SteamOS took the 1440p run by one frame.
That is a more useful result than a single headline winner. Windows 11 does not appear to impose a consistent performance penalty on the Steam Machine, but SteamOS remains competitive and, in some titles, faster.
The Windows path is official, but not fully supported
Valve published graphics, Wi-Fi, Bluetooth and SD-card-reader drivers for Windows earlier this month. Its Windows Resources page makes clear that Steam Machine owners may install another operating system, but Valve provides those files as-is and does not offer Windows-on-Steam-Hardware support.That distinction matters for administrators and tinkerers. Windows expands access to non-Steam launchers, PC Game Pass, native anti-cheat compatibility and ordinary desktop workloads, but it also moves system setup, driver maintenance and recovery onto the owner. SteamOS remains the appliance-like default, while Windows turns the box into a compact AMD gaming PC with Valve-specific driver dependencies.
For prospective Windows users, the practical message is straightforward: install Windows only if its software compatibility is needed, not because these early benchmarks promise a broad performance upgrade.
References
- Primary source: videocardz.com
Published: 2026-07-15T14:38:47+00:00
- Related coverage: techradar.com
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