Windows 11 Gaming Performance on Steam Machine Matches SteamOS in Early Tests, but Caveats Abound

Valve’s newly released Windows drivers for its 2026 Steam Machine have prompted a fresh wave of benchmarking, and the numbers are in: Windows 11 holds its own against the custom-tuned SteamOS. Early results from YouTuber ETA PRIME, first reported by VideoCardz on July 15, show gaming frame rates that are virtually indistinguishable from the console’s native Linux environment—and in CPU-bound tasks, Windows even pulls ahead.

That’s a stark contrast to the gloomy predictions that followed the driver release, where many argued Windows’ overhead would cripple the modest hardware. Instead, the data paints a more practical picture: if you need Windows 11 on your Steam Machine for software compatibility, the performance penalty is far smaller than feared.

What the benchmarks actually say

The tested unit had been upgraded from the stock 16GB of single-channel DDR5-5600 to 64GB, so these figures don’t reflect an out-of-the-box experience. Windows detected the semi-custom six-core Zen 4 processor as an “AMD 1772” and the integrated RDNA 3 graphics with 8GB of memory as a Radeon RX 7600-series GPU.

In CPU benchmarks, Windows 11 showed a clear advantage. Geekbench 6 single-core scores were 3.3% higher, while multi-core performance leaped by 22.1% compared to SteamOS in desktop mode. That desktop mode qualifier matters: SteamOS’s gaming mode might apply different processor power profiles, so the gap could narrow or vanish in real gaming scenarios.

Gaming results, however, were much tighter. The table below summarizes the frame rates—measured in frames per second—across three titles and three resolutions:

Note: Shadow of the Tomb Raider and Horizon Zero Dawn figures are approximate—ETA PRIME reported differences of one to two FPS.

The pattern is clear: no consistent winner. SteamOS often leads at 1080p and 1440p in more demanding titles, but Windows 11 pulls fractionally ahead at 4K, where the GPU is the bottleneck. The margins are so slim that they fall within the margin of error for run-to-run variance. In short, Windows 11 does not impose a systemic gaming performance tax on the Steam Machine.

Why this matters for Steam Machine owners

For everyday players, the takeaway is straightforward: you don’t have to choose between performance and flexibility. The Steam Machine was designed as a console-like appliance running SteamOS, but that locked-in approach has limits. SteamOS relies on Proton to run Windows games, which works for most titles but stumbles with anti-cheat systems, non-Steam launchers, and the Xbox app. Windows 11 sweeps those obstacles away, bringing PC Game Pass, Epic Games Store, and multiplayer titles like Fortnite within reach without dual-booting or virtual machine gymnastics.

But this isn’t a free lunch. Valve has made its position clear: the Windows drivers—covering graphics, Wi-Fi, Bluetooth, and the SD card reader—are provided “as-is” with no official support. Installing Windows 11 overwrites SteamOS, and there’s no simple dual-boot option yet. If something breaks, you’re on your own. The company’s track record with Windows drivers on the Steam Deck is patchy at best; some users there are still relying on graphics and audio drivers from years ago.

Administrators and IT-minded users who deploy these machines in a hybrid gaming-and-light-workstation role will feel the driver maintenance burden. Driver updates are unlikely to arrive through Windows Update; you’ll need to periodically check Valve’s resource page. System recovery, too, complicates the appliance-like simplicity that SteamOS offers.

From SteamOS to Windows: a brief history

This isn’t Valve’s first dance with Windows on custom hardware. The original Steam Machines launched a decade ago running a Debian-based SteamOS 1.0, but they also offered a Windows option. Those devices fizzled out, partly because SteamOS wasn’t ready and the hardware was too expensive. The Steam Deck revived the concept in 2022, and while Valve published Windows drivers for it, they’ve languished. The Steam Machine—a compact, underpowered gaming PC that doubles as a home-theater box—is the latest chapter.

When Valve released the Windows 11 drivers earlier this month, the reaction was mixed. Critics, including TechRadar, called it “lies about driver support,” pointing to the Steam Deck’s neglected drivers as proof that history would repeat. Yet the early benchmarks tell a different story: the hardware can handle Windows 11 surprisingly well, provided you accept the trade-offs.

Should you install Windows 11? A practical guide

Before you wipe SteamOS, ask yourself what you’re trying to achieve. Here’s a practical checklist to help decide:

• Stick with SteamOS if you mainly play Steam games, don’t need non-Steam launchers, and value a controller-friendly, console-like experience. Proton handles the vast majority of games now, and performance is often equal or slightly better.
• Consider Windows 11 if you regularly play games with anti-cheat that don’t work under Proton (e.g., Fortnite, Destiny 2), rely on PC Game Pass, or need the machine for desktop productivity that demands Windows-specific software.
• Weigh the risks: No official support, manual driver installations, possible long-term driver stagnation, and the hassle of reinstalling SteamOS if you change your mind. The current lack of dual-boot means you can’t easily test both side by side.

If you decide to proceed, the installation process mirrors a standard Windows 11 setup: create a bootable USB, boot from it, install Windows, then download the driver bundle from Valve’s Steam Machine Windows Resources page. After that, you’ll have a compact AMD-powered PC that can double as a gaming console. But be prepared to troubleshoot: Wi-Fi and Bluetooth issues are common on unsupported hardware, and Windows Update might replace Valve’s GPU driver with a generic one, so disabling automatic driver updates via Group Policy is wise.

For those who want the best of both worlds, patience may pay off. The community has already proven that dual-boot solutions are technically feasible; it’s a matter of time before an easy method emerges. Valve could also improve driver updates or even offer a firmware-level boot manager—but given its focus on SteamOS, don’t hold your breath.

What comes next

The early benchmarks are promising but incomplete. They cover only a handful of games on an upgraded unit; we need more data with a wider library, including DirectX 12 titles that push the RDNA 3 architecture. Driver stability over time is another open question—Valve’s commitment will be tested when the next major Windows update rolls out.

More immediately, watch for community-led driver packs and dual-boot guides. The Steam Machine’s hardware is essentially a mini PC, and the tinkerer community will likely smooth the rough edges before Valve does. If you’re on the fence, the smart play is to wait a few weeks for broader testing and user reports. Windows 11 on the Steam Machine works today, but it’s not yet a polished alternative—it’s an option for those who need it, not a blanket upgrade.