Valve’s official spec sheet shows the Steam Machine features a semi-custom AMD Zen 4 architecture 6-core, 12-thread CPU with a maximum boost clock of 4.8 GHz and a TDP of just 30W; the GPU is a semi-custom AMD RDNA 3 architecture with 28 CUs, 8GB GDDR6 VRAM, a maximum sustained frequency of 2.45GHz, and a TDP of 110W; system memory is 16GB DDR5, with another 8GB GDDR6 VRAM separate from system RAM; storage options are 512GB and 2TB NVMe SSDs, both with a built-in high-speed microSD card slot. Tech blogger “Rookie Scavenger” analyzed that both the CPU and GPU are 2023-era rebadged specifications, roughly equivalent to the Ryzen 7640HS (Phoenix platform, 35~54W cTDP) and the Radeon RX 7600M (Navi 33 LE, RDNA 3, 90W), respectively, rather than an integrated SoC solution; the system memory is a 16GB single-channel configuration. Based on the heatsink size, the CPU and GPU chips are physically packaged separately.
Regarding performance, the blogger’s real-world testing reported that the Steam Machine underperforms in high-graphics scenarios: Cyberpunk 2077 (1440p, medium, ray tracing) runs at about 28 FPS, Black Myth: Wukong (1440p, very high) at roughly 20 FPS, and Avatar: Frontiers of Pandora (ultra) at around 21 FPS; in a comparative test under the same conditions, the PS5 performance mode achieved approximately 53 FPS while the Steam Machine hit about 48 FPS. The blogger concluded that at a starting price of $1,049, the value proposition is far worse than building a PC at the same price point. These performance figures come from the blogger’s own tests; Valve has not released official benchmarks, and independent reviews from outlets (IGN, Digital Foundry, GamersNexus) have not yet been published, so the data awaits cross-verification.