Steam Machine specs

Valve's product page lists a compact AMD-based SteamOS system:

CPU

Semi-custom AMD Zen 4, 6 cores / 12 threads, up to 4.8GHz

GPU

Semi-custom AMD RDNA 3, 28 compute units, up to 2.45GHz

Memory / VRAM

16GB DDR5 plus 8GB GDDR6 VRAM

Storage

512GB or 2TB NVMe, both expandable via microSD; Valve supports UHS-I U3 or faster cards, but the slot does not use UHS-II or UHS-III transfer rates

Valve's official support guide adds practical display limits. Gaming Mode currently uses one display at a time and defaults to HDMI when both HDMI and DisplayPort are connected. DisplayPort-to-HDMI conversion requires an active adapter; a passive adapter is not supported.

On paper, Steam Machine has more headroom than Steam Deck for simulation, background tasks, decompression, and frame pacing. Reviews are better evidence for game performance than those paper advantages.

Steam Machine is much faster than Steam Deck. Valve's official specifications give it 50% more CPU cores and threads, a 37% higher peak CPU clock, 3.5x as many GPU compute units, and roughly 5.5x the Deck's raw FP32 graphics compute. Published reviews place its GPU around the RX 6600, Arc B570, or RTX 3060 class depending on the test. That is a useful baseline, not a promise that every game scales with the spec sheet.

For current reservation and waitlist context, see Steam Machine Status. For official store checks separate from queue movement, use the Stock and availability tracker.

Expect strong 1080p performance and game-dependent 1440p results. Native 4K is selective because the machine still has 8GB of VRAM and often relies on FSR or lower settings in demanding games.

Compared with the original LCD Steam Deck, Steam Machine is a different performance class on paper:

Steam Deck LCD's 1280x800 panel has about 1.0 million pixels. 1080p has about 2.1 million, 1440p about 3.7 million, and native 4K about 8.3 million. Steam Machine's estimated 5.5x raw GPU compute uplift is smaller than the roughly 8.1x pixel jump from Deck's screen to native 4K, so FSR is central to the 4K target.

These are spec-derived comparisons, not direct game-performance scaling. Published benchmarks remain the better evidence for frame rates.

Steam Machine now has at least two public Geekbench Browser CPU uploads under the `Valve Fremont` model name:

The uploads provide public CPU data beyond the spec sheet. Geekbench is a synthetic CPU test. It does not show how games behave when limited by the GPU, whether native 4K is practical, or how FSR looks. It also cannot establish how 8GB of VRAM affects games or measure fan noise and frame pacing on a TV.

For game performance, use the Gamers Nexus and PC Gamer reviews discussed under resolution expectations below. They measure workloads that the CPU uploads do not.

Valve's advantage is coordination, not hidden hardware. A fixed target gives the company more control over how SteamOS, Proton, settings, and compatibility guidance use this midrange hardware.

Fixed target. Developers, Valve, and compatibility testing can aim at one known box instead of thousands of Windows PC combinations.

SteamOS overhead. PC Gamer reported a Cyberpunk 2077 uplift for SteamOS over Windows on comparable handheld hardware. That result is not universal and is separate from the Cyberpunk 2077 Steam Machine settings and FPS evidence collected for Valve's retail hardware.

Mature Proton. Proton is far more mature than during the original Steam Machine era. Steam Machine starts from years of Steam Deck work rather than from scratch. Limits remain, especially around anti-cheat.

FSR is in the design. Valve has framed Steam Machine's 4K target around upscaling. PC Gamer reported Valve's claim that the majority of Steam titles play well at 4K 60 fps with FSR, with some titles needing more upscaling or lower frame rates with VRR.

FSR4.1 is available experimentally. In its July 28 Steam Machine update, Valve said FSR4.1 is available through Proton Experimental for titles supporting the FSR upgrade feature. That is narrower than stable, default support: it does not cover every game, promise automatic enablement, or establish a performance uplift by itself.

Deck Verified carries forward. Valve's compatibility system already labels games by input, display, seamlessness, and system support, including Proton and anti-cheat behavior. Steam Machine benefits from that existing catalog knowledge instead of starting from zero.

Windows is optional and unsupported. Valve publishes Steam Machine Windows drivers for graphics, Wi-Fi, Bluetooth, and the SD card reader, but provides them as-is and does not support Windows on Steam hardware. Installing Windows wipes SteamOS, and Valve does not yet provide a dual-boot wizard even though the hardware can support dual boot.

VRAM. The 8GB graphics-memory budget can constrain high-resolution textures and ray tracing. If a game struggles, test lower texture settings rather than assuming upscaling alone will solve it.

Compatibility edges. Proton is strong, but launcher-heavy games, kernel-level anti-cheat, and non-Steam dependencies still change the experience. Anti-cheat support depends on game and developer implementation.

Thermals. Steam Machine is compact. Fan noise, sustained clocks, and performance inside a TV cabinet matter more than peak numbers.

Price. Steam lists US prices from $1,049 to $1,428 depending on storage and whether the Steam Controller is bundled. Published reviews now give buyers benchmark evidence, and their common criticism is that SteamOS integration and fixed-target convenience carry a steep premium beside consoles and conventional PCs.

Published reviews provide the usable baseline. Gamers Nexus found GPU performance in the RX 6600, Arc B570, and RTX 3060 neighborhood depending on the test. PC Gamer's demanding 1440p runs ranged from the teens to the mid-40s, while Tom's Hardware found older and lighter games could fare much better.

Valve's support guide identifies 1080p as the baseline: SteamOS uses it as the default game resolution, and Valve uses it for Steam Machine Verified testing. Users can override that globally or per game. Treat 1440p as a game-specific target, not an automatic max-settings target.

For a 4K TV, demanding games may need FSR, lower internal resolution, reduced settings, or a lower frame-rate target. Judge the resulting image and frame pacing; a 4K output signal does not mean the game renders at native 4K.

For title-by-title evidence, browse Steam Machine game settings and performance drawn from community reports, reviewed Community observations, and cited performance evidence.

• Performance across a broader game set after SteamOS, driver, and game patches
• FSR4.1 coverage, stability, and image quality through Proton Experimental
• 8GB VRAM behavior with modern texture settings
• Frame pacing and shader compilation rather than average FPS alone
• Sustained performance inside a typical TV cabinet
• Suspend, resume, controller wake, Proton, and anti-cheat behavior over time