Valve's handheld is a full x86 PC you hold: an AMD Zen 2 / RDNA 2 chip running Linux-based SteamOS, with a desktop mode, full controls, and the ability to install almost anything. It reframed the handheld not as a closed console but as a portable computer that plays a PC library.
The Four Natures
each piece emerges by one of four natures
The Idea
the three-beat story
An AMD 'Van Gogh' APU — four Zen 2 x86 cores and an RDNA 2 GPU — runs Arch-Linux-based SteamOS with a Proton compatibility layer that plays most Windows games. Open by design: you can drop to a desktop and install other software.
Full sticks, buttons, triggers, and twin trackpads (a Valve hallmark) make mouse-driven PC games workable in the hand — a control set built for the breadth of a PC library, not just console-style games.
Unlocked firmware, an official desktop mode, and published repair parts make the Deck unusually open and serviceable — a deliberate contrast to the sealed console model, and the start of a wave of x86 handheld PCs.
The Teardown — Click a Block
the machine, laid out as a block diagram — the main processor on top, the rest of the silicon beneath, buses showing what talks to what. Click any block to read its spec. An accurate architecture diagram (a teardown illustration, not a schematic).
The Spec Sheet
the headline numbers — the spec edition
4 cores · ~1.6 TFLOPS GPU.
desktop mode · installable software.
unified.
+ microSD.
full PC-style controls.
The Reckoning
the teardown, and the honesty about it
The Domain: Open It and Spec It
the teardown
- EXEREÚNESIS takes a real, made machine apart down to the chip and writes the honest spec — not a story-world but a technical anatomy.
- >One of a growing series of console teardowns; siblings link from the marquee.
Two-Layer Honest
datasheet vs lore
- Settled: the Van Gogh APU (Zen 2 + RDNA 2), SteamOS/Proton, the LPDDR5, SSD storage, and the trackpad controls are documented.
- Flagged: 'plays your whole Steam library' is broadly true via Proton but not universal — some titles are unsupported or imperfect; stated with that caveat.
Render, Not Invent
sourced
- Summarized from the public technical record for the VALVE STEAM DECK; the manufacturer and its engineers are cited, not minted.
- No ROMs, BIOS, or copyrighted code are reproduced. Emergents are physical components; the block diagram is an illustration, not a schematic.
The Roster
every chip and part as an ACI .agent — each a birth certificate & a nature (7)
