# Steam Machine review: compact SteamOS hardware replaces high-end desktop for some users

> **Key takeaway:** A Steam Deck HQ reviewer reports replacing an RTX 5090 desktop with Valve's $1,050 Steam Machine after two months, citing form factor, thermal performance, and SteamOS optimizations as decisive factors.

**Published:** 2026-10-20T15:30:32+00:00 
**Source:** Steam Deck HQ (Reviews & Optimizations) 
**Category:** open-gaming 
**Canonical URL:** https://fosswire.org/news/steam-machine-review-compact-steamos-hardware-replaces-high-.html 

## Summary
Steam Deck HQ published a long-term review of Valve's Steam Machine from a user who sold their high-end RTX 5090 / Ryzen 7 9800X3D desktop after two months. The reviewer praises the compact device's cooling and noise levels under sustained load, the portability of the small form factor, and SteamOS's gaming-focused optimizations including Proton integration and Quick Access performance controls. The review also notes significant limitations: kernel-level anti-cheat systems block major multiplayer titles like Valorant and Fortnite from running on SteamOS.

## What the Steam Machine delivers and where it falls short
- **Form factor and thermals**: The reviewer reports sustained gaming loads (e.g., Crimson Desert) run with minimal fan noise and controlled temperatures in a chassis significantly smaller than typical DIY small-form-factor builds
- **SteamOS performance**: Desktop Mode with keyboard and mouse is described as more usable than on Steam Deck; Gaming Mode provides Quick Access controls for FPS limits, V-Sync, and performance settings without leaving the game
- **Proton and game optimization**: The reviewer cites Baldur's Gate 3 running at 4K/Ultra/60 FPS as an example of Steam Deck-targeted optimizations benefiting the more powerful Steam Machine hardware
- **Anti-cheat limitation**: Kernel-level anti-cheat systems designed for Windows remain unsupported on Proton/Linux, rendering games including Valorant, Fortnite, and Call of Duty unplayable on SteamOS

## Why it matters
The review illustrates how Steam Deck's market success has created a software optimization ecosystem that benefits subsequent Valve hardware, though the persistent anti-cheat gap remains a structural barrier to broader Linux gaming adoption.