No exact desktop card is the Steam Machine GPU equivalent
Table of Contents
Short answer: no desktop card matches it exactly
No desktop card is an exact twin of the Steam Machine GPU, because Valve built it as a semi-custom chip. On paper, it is a cut-down Radeon RX 7600 with 28 compute units, not 32. In GamersNexus’s GPU-bound tests, it landed closest to the RX 6600, Arc B570 and RTX 3060.
| Lens | Closest match | Key Detail |
|---|---|---|
| Paper specs | Radeon RX 7600 | 28 vs 32 compute units |
| Measured tests | RX 6600, Arc B570, RTX 3060 | RX 7600 ahead in most games |
| Power limit | Below RX 7600 | 110W vs 165W rating |
Source: GamersNexus (June 2026); AMD (May 2023).
Own a card already? Jump to the lookup. The full Steam Machine spec breakdown covers the rest.
What GPU is actually inside the Steam Machine?
Valve describes a semi-custom AMD RDNA 3 graphics chip, and GamersNexus lists it at 28 compute units, a 2.45 GHz maximum sustained clock, a 110W TDP and 8GB of GDDR6.
The spec sheet in one table
| Part | Reported spec | Key Detail |
|---|---|---|
| GPU | 28 compute units, up to 2.45 GHz, 8GB GDDR6 | 110W TDP; separate chip from the CPU |
| CPU | 6 cores, 12 threads, up to 4.8 GHz | 30W TDP |
| Power supply | 300W, internal | Sets the total power ceiling |
Source: GamersNexus; Tom’s Hardware; check Valve’s Steam Machine hardware page.
Why “semi-custom” means no exact twin
GamersNexus says Valve limits the chip’s power for its 300W supply and thermals, so no retail card has the same mix. Each comparison below uses a separate lens.
On paper: the closest desktop and laptop cards
Three AMD cards sit closest to the Steam Machine GPU’s compute units and power rating on paper.
| Card | Compute units | Power rating | Key Detail |
|---|---|---|---|
| Steam Machine GPU | 28 | 110W TDP | Semi-custom RDNA 3 |
| Radeon RX 7600 | 32 | 165W board power | RDNA 3; previous generation |
| Radeon RX 7600M | 28 | 50W to 90W | Laptop part |
| Radeon RX 6600 | 28 | 132W board power | RDNA 2; previous generation |
Source: AMD; GamersNexus; Tom’s Hardware; TechRadar. Power ratings use each maker’s own definition.
RX 7600: same architecture, more compute units
AMD lists the RX 7600 at 32 compute units and 8GB of GDDR6. The Steam Machine GPU has 87.5% of that count, which is arithmetic, not performance.
RX 7600M: the closest laptop match
Tom’s Hardware reports 28 compute units at 50W to 90W.
RX 6600: same count, older design
TechRadar’s RX 7600 review puts the RX 6600 at 28 compute units on RDNA 2.
In tests: where reviewers place it against desktop cards
In GPU-bound testing, two independent reviewers place the Steam Machine between the RX 6600 and RX 7600.
Where independent tests place it
GamersNexus found it closest to the RX 6600, Arc B570 and RTX 3060. Digital Foundry’s comparison, built on a Ryzen 5 5600X, also placed it between the RX 6600 and RX 7600.
| Card | Versus Steam Machine | Key Detail |
|---|---|---|
| RX 7600 | Ahead 15% to 25% in most games | GamersNexus; previous generation |
| RTX 5050 | Ahead about 20% in Starfield | GamersNexus; newer card |
| RTX 3060 12GB | Level; ahead in some games, behind in others | GamersNexus only |
| RX 6600 | Level to behind | GamersNexus, Digital Foundry |
Source: GamersNexus (SteamOS vs Windows bench); Digital Foundry. June 2026.
Why the tests don’t fully agree
GamersNexus used MangoHud on SteamOS for the Steam Machine and PresentMon on Windows for desktop cards, and says AMD hardware does better on Linux. Valve’s ray-tracing patch also lifted its RT results 10% to 21%.
What it can and can’t do at 1080p, 1440p and 4K
Valve promises 4K at 60 FPS with FSR upscaling, per Tom’s Hardware, but the measured results favor 1080p.
1080p is the comfortable target
GamersNexus reports games default to a 1920×1080 cap, which Valve says is also its Verified testing resolution. GamersNexus measured 59 FPS in Cyberpunk 2077 at 1080p Ultra.
4K works through FSR, not natively
Ray tracing is the weak spot. GamersNexus recorded 21 FPS in Cyberpunk 2077 at 1080p RT Medium, and PC Gamer 28 FPS at 1440p with FSR Quality. Tom’s Hardware questioned the 4K claim given 8GB of VRAM.
Can you upgrade the GPU, and is building a PC cheaper?
The GPU cannot be upgraded, though GamersNexus says the RAM and SSD can be swapped.
What you can and can’t swap
GamersNexus says neither the CPU nor the GPU is socketable. Tom’s Hardware reports Valve explored a separate add-in GPU but found the size, thermal and cost compromises did not pan out.
🧩 Compatibility Check: Before swapping RAM or an SSD, check Valve’s support documentation for supported memory and drive types. Not verified here.
DIY with the same GPU: the price gap
In June 2026, GamersNexus priced a paper-spec DIY build with a Ryzen 5 7400F, RX 7600 and mini-ITX board at $979 against roughly $1,050 for the 512GB model, adding that the Steam Machine performs below that spec. For a compact build, see mini-ITX compatibility limits and finding a compatible budget motherboard.
Does your current graphics card beat it?
Owners can place a card using the same tests, though launch-era software may shift results.
Cards level with it
GamersNexus put the RX 6600, Arc B570 and RTX 3060 level in GPU-bound tests, and Digital Foundry had the RX 6600 slightly behind.
Cards clearly ahead of it
GamersNexus put the RX 7600 and RTX 5050 ahead, and its Oblivion Remastered run had an RTX 5060 at 43 FPS against 27. It found no overclocking or power-limit options in the BIOS.
Steam Machine GPU questions, answered
1. What GPU is in the Steam Machine?
The Steam Machine GPU is a semi-custom AMD RDNA 3 chip with 28 compute units and 8GB of GDDR6, per GamersNexus.
2. Is the Steam Machine GPU an RX 7600?
No. It shares the RX 7600’s architecture but has 28 compute units against 32 and a 110W rating against AMD’s 165W board power.
3. Which desktop GPU matches the Steam Machine GPU?
GamersNexus found it closest to the RX 6600, Arc B570 and RTX 3060, with the RX 7600 ahead.
4. Is the Steam Machine GPU faster than an RTX 3060?
In GamersNexus’s GPU-bound tests it was roughly level, leading the RTX 3060 in some games and trailing it in others.
5. Is the Steam Machine GPU the same as the RX 7600M?
Not exactly. Both have 28 compute units, but the laptop RX 7600M is rated 50W to 90W against Valve’s 110W.
6. Why is the Steam Machine GPU slower than an RX 7600?
It has fewer compute units and a lower power limit, and GamersNexus’s tests put the RX 7600 ahead in most games.
7. How much VRAM Does the Steam Machine GPU have?
It has 8GB of GDDR6 video memory, a capacity Tom’s Hardware questioned for Valve’s 4K-at-60-FPS claim.
8. Can the Steam Machine GPU run 4K?
Valve markets 4K at 60 FPS with FSR, but GamersNexus reports a 1080p default cap and weak ray-tracing results.
9. Can you upgrade the Steam Machine GPU?
No. GamersNexus says the CPU and GPU are not socketable, though the RAM and SSD can be swapped.
10. Is a DIY RX 7600 PC cheaper than a Steam Machine?
GamersNexus priced a paper-spec DIY build at $979 against roughly $1,050 for 512GB in June 2026, but says the Steam Machine performs lower.
How to read the Steam Machine GPU comparison
On paper, the Steam Machine GPU is a cut-down RX 7600. In GamersNexus and Digital Foundry testing, it lands between an RX 6600 and an RX 7600, which GamersNexus attributes to its power limit. Prices are June 2026 launch figures. Pricing a build instead? Read how long AM5 sockets stay supported.
