Steam Machine vs Custom Gaming PC — Which Should You Buy? (UK 2026)

Valve has brought back the Steam Machine — a small, console-style box that plays PC games in your living room. It looks great, and the launch has people asking a fair question: should I get a Steam Machine, or buy a proper custom gaming PC? This guide compares the two honestly — price, real-world power, the games each can actually run, upgrades and availability — so you can decide which is right for you. Every PC we build is assembled to order in the UK, backed by a 3-year warranty, and always £100 below eBay.

Updated August 2026 with current UK prices. Custom builds start from £786, or £973 with a dedicated graphics card — UK-assembled, 3-year warranty, free next-day delivery. Build yours →

Want a Windows gaming PC instead? Configure one in our online PC builder — built to order, in stock now, no waiting list. Or spread the cost with finance (0% available at checkout).

In short

  • The Steam Machine runs SteamOS, which is Linux — so several major anti-cheat multiplayer games, including Call of Duty, Battlefield 6, EA Sports FC 26 and Valorant, will not run on it.
  • A Windows custom PC runs all of those, plus everything on the Epic Games Store and Xbox.
  • The Steam Machine wins on size and simplicity: a six-inch cube that sits under a TV and boots straight into a controller-friendly interface.
  • A custom gaming PC wins on power, upgrades and availability — you can order one today instead of waiting for the draw.

What Is the New Steam Machine?

The 2026 Steam Machine is a roughly 6-inch cube running SteamOS 3 (a Linux-based operating system), designed to plug into your TV like a console. The published specifications are:

  • CPU: semi-custom AMD Zen 4, 6 cores / 12 threads (up to 4.8GHz)
  • GPU: semi-custom AMD RDNA3 with 28 compute units (110W)
  • Memory: 16GB DDR5 system RAM + 8GB GDDR6 dedicated video memory
  • Storage: 512GB or 2TB NVMe SSD, plus a microSD card slot
  • Connectivity: Wi-Fi 6E, Bluetooth 5.3, Gigabit ethernet
  • OS: SteamOS 3 (Linux) — not Windows

Valve's stated performance target is 4K 60fps using FSR upscaling. In native rendering, that 28-CU RDNA3 graphics chip sits roughly in the same class as an entry desktop card such as an Intel Arc / RTX 5050 — very capable at 1080p and 1440p, but it leans on upscaling for 4K rather than rendering it natively.

UK Price and How to Buy

  • 512GB: £879
  • 512GB with Steam Controller: £938
  • 2TB: £1,149
  • 2TB with Steam Controller: £1,260

Note how you buy it: you join a sign-up list, the list closes, and buyers are then chosen at random — it is not simply on sale to everyone on day one. If you want a gaming machine you can order today and have built this week, that is worth weighing up.

Steam Machine vs Custom Gaming PC — Side by Side

  Steam Machine Our Custom Gaming PC
Starting price £879 (512GB) From £786 (esports) · £973 with a discrete graphics card
Operating system SteamOS (Linux) Windows 11 — every game, plus work apps
Graphics power Fixed ~RTX 5050 class Your choice — RTX 5060 with DLSS 4 up to RTX 5090
Upgradeable No — sealed unit Yes — swap GPU, RAM and storage anytime
Anti-cheat multiplayer Some big titles blocked on Linux All run
How to buy Random draw / waiting list Order now, free next-day UK delivery after build
Warranty Standard 3 years, UK-built, £100 below eBay

Where the Steam Machine Is a Good Choice

Credit where it is due — the Steam Machine is a clever device, and for the right person it makes sense:

  • Living-room simplicity: tiny, quiet and low-power, it plugs into a TV and "just works" with a controller, like a console.
  • SteamOS is polished: instant sleep/resume and a console-like interface, tuned by Valve for its own hardware.
  • Great for Steam single-player libraries: if you mostly play story games and Steam-Verified titles at 1080p or 1440p, it is a tidy, hassle-free box.

If that describes you, it is a fine purchase. But if you want more power, more games, or a machine that doubles as a real computer, a custom PC pulls ahead — here's why.

Where a Custom Gaming PC Wins

A custom gaming PC wins on five counts: it runs every game including the anti-cheat multiplayer titles SteamOS blocks, you choose how much power it has, it works as a real computer rather than just a games box, you can upgrade it later, and you can actually buy one today.

1. It runs every game — including the multiplayer ones

This is the big one. Because SteamOS is Linux, several of the most popular multiplayer games do not run on the Steam Machine due to anti-cheat software that isn't supported on Linux. At launch that includes major titles such as Call of Duty, Battlefield 6, EA Sports FC 26 and Valorant (their Ricochet, Javelin and Vanguard anti-cheat systems are blocked). A Windows custom PC runs all of them, plus everything on the Epic Games Store, Xbox / Game Pass and any other launcher.

2. You choose the power — and it goes much higher

The Steam Machine's graphics are fixed at roughly RTX 5050 level forever. On a custom PC you pick the graphics card to match your budget and screen — from an RTX 5060 with DLSS 4 frame generation (genuine native power, not just upscaling) all the way up to an RTX 5080 or RTX 5090 for 4K. See our 1440p and flagship build guides for the full range.

3. It's a real computer, not just a games box

A Windows PC also handles work, study, photo and video editing, streaming, web apps and everything else. The Steam Machine is built for Steam gaming first and foremost.

4. You can upgrade it

The Steam Machine is a sealed unit — what you buy is what you keep. A custom PC lets you add more storage, more RAM or a newer graphics card down the line, so it lasts longer before it needs replacing.

5. You can actually buy one today

No waiting list, no random draw. You configure it, we build it to order in the UK within about five working days, and it ships free next-day. Always £100 below the eBay price, with finance available.

Steam Machine vs an RTX 5050 Gaming PC — The Closest Comparison

The Steam Machine's semi-custom RDNA3 chip has 28 compute units at 110W. In native rendering that puts it in the same broad class as an entry desktop graphics card like the RTX 5050 — which makes "Steam Machine vs RTX 5050" the fairest like-for-like question, and the one we get asked most. Here is the honest version.

Where they are genuinely close

At 1080p, and at 1440p in most single-player games, you would struggle to tell them apart in a blind test. Both are comfortable at those resolutions. Valve targets 4K 60fps using FSR upscaling; an RTX 5050 reaches 4K the same way, leaning on DLSS 4 rather than brute force. Neither is a native 4K machine, and any review claiming otherwise about either one is overselling it.

Where the RTX 5050 build pulls ahead

The RTX 5050 build pulls ahead on compatibility and headroom: Windows 11 runs every competitive title SteamOS blocks, DLSS 4 lifts the effective frame rate at 1440p beyond what the raw specs suggest, and 16GB of RAM is the starting point rather than the ceiling.

  • It runs everything. Windows 11 means no Linux compatibility layer and no anti-cheat wall. Several big competitive titles simply will not launch on SteamOS. If you play those, this is the whole argument.
  • DLSS 4 and frame generation. NVIDIA's upscaling is more widely supported than FSR across the current catalogue, so the effective frame rate at 1440p is often better than the raw specs suggest.
  • 16GB of RAM is the floor, not the ceiling. The Steam Machine ships with 16GB and that is what it stays. Our builds start at 16GB and go to 192GB.
  • Storage you can actually change. A sealed 512GB drive fills quickly with modern installs. Our builds take multiple NVMe drives and you can add more later.
  • You can buy it today. No sign-up list, no random ballot. Ordered now, built and tested within five working days.

Where the Steam Machine pulls ahead

The Steam Machine pulls ahead on size and simplicity: a six-inch cube under a TV is something no tower matches, SteamOS boots straight into a controller-friendly interface with no Windows updates or driver housekeeping, and a Steam-only library makes that simplicity a real feature.

  • Size and noise. A six-inch cube under a TV is something no tower matches.
  • It just works. SteamOS boots straight into a controller-friendly interface. No Windows updates, no driver housekeeping.
  • If your library is already Steam-only and you have no interest in Windows, the simplicity is a real feature, not a compromise.

The price, side by side

  Steam Machine 512GB Our RTX 5050 build
Price £879 from £1,040
Operating system SteamOS 3 (Linux) Windows 11
Memory 16GB, fixed 16GB, upgradeable to 192GB
Storage 512GB, sealed 1TB NVMe, add more anytime
Upgradeable No Yes — GPU, RAM, storage
Availability Sign-up ballot Order today, built in 5 working days

If the budget is the deciding factor, note that our cheapest build with a dedicated graphics card starts at £973 — below the Steam Machine — and stepping up to an RTX 5060 from £1,084 buys a clear performance gap rather than a like-for-like trade. Every build is assembled in the UK, carries a 3-year warranty, and is priced £100 below our own eBay listing.

Browse RTX 5050 gaming PCs from £1,040 →

The Price Reality

At first glance the £879 entry Steam Machine looks cheap — but compare like for like:

Put simply: the Steam Machine can be a few pounds cheaper at the very entry point, but a custom PC gives you far more machine — and far more games — for similar money.

Build it your way. Pick your exact CPU, graphics card, RAM and storage in our online PC builder — built to order in the UK, always £100 below eBay.

Which Should You Buy?

Buy a Steam Machine if you want the simplest plug-into-the-TV box for single-player Steam games and do not mind Linux or waiting for the draw. Buy a custom gaming PC if you want more performance per pound, play anti-cheat multiplayer titles, need Windows for work as well as games, or want to order today.

  • Buy a Steam Machine if: you want the simplest possible plug-into-the-TV box, play mostly single-player Steam games at 1080p/1440p, don't mind Linux, don't play anti-cheat multiplayer titles, and you're happy to wait for the draw.
  • Buy a custom gaming PC if: you want maximum performance for the money, play multiplayer games like Call of Duty or Valorant, want Windows for games and work, want the option to upgrade, and want to order today.

Custom Gaming PCs to Consider — Live UK Prices (August 2026)

Every build is assembled to order in the UK with a 3-year warranty. Starting prices, lowest first:

  • From £786 — Esports (integrated graphics): Ryzen 5 + 16GB DDR5 + NVMe SSD. Great for CS2, Valorant, Fortnite and League at 1080p. See under-£1,000 builds →
  • From £973 — Entry 1080p: RTX 3050 6GB + Ryzen 5 — AAA games at 1080p high, on Windows.
  • From £1,084 — Sweet spot: RTX 5060 with DLSS 4 — strong 1080p/1440p and the natural step up from a Steam Machine.
  • From £1,202 — 1440p: RX 9060 XT 16GB — more VRAM for sharp, future-proof 1440p gaming.

Frequently Asked Questions

Is the Steam Machine better than a custom gaming PC?

For living-room simplicity, it's excellent. For raw power, game compatibility, upgradeability and doubling as a real computer, a custom Windows PC is the stronger all-round choice — and for similar money you usually get more graphics power.

Can the Steam Machine run every game?

No. Because it runs SteamOS (Linux), several major anti-cheat multiplayer games — including Call of Duty, Battlefield 6, EA Sports FC 26 and Valorant — do not currently run on it. A Windows custom PC runs them all.

Does the Steam Machine run Windows?

It ships with SteamOS (Linux), not Windows. Our custom PCs come with Windows 11, so you get full access to every game store and every Windows application.

Can you upgrade a Steam Machine?

No — it's a sealed unit. A custom PC lets you add storage and RAM or fit a newer graphics card later, so it lasts longer.

Is a Steam Machine or a gaming PC cheaper?

The entry Steam Machine (£879) can be slightly cheaper than a discrete-graphics Windows build, but at the 2TB tier (£1,149) a custom RTX 5060 PC costs about the same while offering Windows, more power and upgrades. You're getting more machine for your money with a custom PC.

When can I buy a Steam Machine?

Valve is using a sign-up list with a random draw rather than open sale, so there's no guarantee of getting one straight away. Our custom PCs are always available to order — built in the UK within about five working days.

What's a good Steam Machine alternative in the UK?

A custom-built Windows gaming PC. Configure one online — choose your graphics card, RAM and storage, and we build it to order, £100 below eBay, with a 3-year warranty and free UK delivery.

Is the Steam Machine as fast as an RTX 5050?

In the same broad class, yes — the 28-compute-unit RDNA3 chip lands near an entry desktop card at 1080p and 1440p. The practical differences are not raw speed: Windows runs every game including anti-cheat multiplayer titles, DLSS 4 is more widely supported than FSR, and an RTX 5050 build can be upgraded later. The Steam Machine cannot.

Is a Steam Machine or an RTX 5050 PC better value in the UK?

The Steam Machine 512GB is £879. Our RTX 5050 builds start at £1,040, and our cheapest build with a dedicated graphics card is £973. The PC gives you Windows, upgradeability and immediate availability; the Steam Machine gives you a smaller, simpler box. Decide on which of those matters to you, not on the headline number alone.

Build your custom gaming PC — UK-built, 3-year warranty, free delivery, £100 below eBay →

About the Author

Written by the team at We Build The Perfect PC For You Ltd — a UK-based custom PC building company based in Littlehampton, West Sussex. Every PC we sell is built to order at our UK workshop, stress-tested before dispatch, and backed by a 3-year warranty. If you have questions about any build, get in touch — we're happy to help.

Browse Our Custom Gaming PCs

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