Steam Machine vs a Custom Gaming PC: What £879 Actually Buys You
July 21, 2026
Valve just did something nobody expected from the company that made £400 look reasonable for the original Steam Machine back in 2015: it launched the new one at £879 for the base 512GB model, rising to £1,208 for the 2TB bundle with a controller. Even Valve admits it’s not the number they wanted. They’re blaming the same thing everyone in this industry is blaming right now (the RAM crisis) and for once, that’s not just a convenient excuse.
Here’s the thing though. £879 doesn’t just buy a Steam Machine. It buys a lot of PC. So let’s actually look at what you’re getting for that money, and what else that money could be doing instead.
Valve Isn’t Immune to the RAM Crisis Either
Even Valve. This is a company that owns the platform, controls the ecosystem, and could absorb a hit if it wanted to. They’ve said plainly that £879 reflects this year’s component market, not a price they’d have chosen in normal conditions. That’s not spin. Chipmakers have spent 2026 reallocating fab capacity away from consumer DRAM and toward the far more profitable memory that feeds AI datacentres, and every device with RAM in it (console, laptop, custom build, Steam Machine) has felt the squeeze.
We’re not having a dig at Valve for this one. If the biggest name in PC gaming can’t dodge the RAM crisis, nobody’s dodging it. What we are saying is: don’t assume a fixed-spec box is automatically the affordable option just because it’s not built by a boutique PC company. Right now, everyone’s paying the same tax. What matters is what you get for it.
What £879 Actually Gets You
Fixed Specs, No Choices
The Steam Machine is a sealed unit. Whatever’s in the 512GB model is what you’re getting. No swapping the GPU for something stronger, no bumping the RAM if 2026’s pricing eases up next year, no choosing a bigger PSU because you know you’ll want more headroom down the line. You’re buying today’s spec, locked in, for the life of the machine.
Console-Shaped Compromises, PC-Shaped Price
It runs SteamOS. It’s built around a controller. It’s genuinely clever hardware and nobody’s disputing that Valve knows what it’s doing. But it’s a living-room device wearing a PC price tag, and once you’re outside that specific use case (no mouse-and-keyboard-first setup, no upgrade path, no choice of case, cooling, or components) you’re paying custom-PC money for console-shaped flexibility.
What a Similarly Priced Custom Build Gets You
For comparable money, a properly specced custom build gets you a GPU chosen for your games, not a fixed bundle. A PSU with actual headroom instead of just enough to cover today’s parts. A case that isn’t dictated by SteamOS’s form factor. And criticall, a machine you can upgrade in eighteen months instead of replacing outright, which matters a lot more while RAM prices are still working their way back down.
That’s not a knock on the Steam Machine as a product. It’s a genuinely interesting bit of hardware for the right person. It’s a knock on treating “it’s from Valve” as a substitute for actually comparing the spec sheet.
The Real Question Isn’t “Which Is Cheaper” – It’s “Which Fits How You Actually Play”
If you want a living-room box that just works with a controller and don’t care about swapping parts, the Steam Machine does that job properly. If you want a machine that’s built around your games, your desk, and your budget (and that you can still be using in three years without buying a whole new box), that’s a different conversation, and it’s one the Steam Machine was never designed to win.
TL;DR
| Steam Machine (512GB) | Custom Build, Similar Budget | |
|---|---|---|
| Price | From £879 | From £879 |
| Spec flexibility | Fixed, no swaps | Chosen for your games and budget |
| Upgrade path | None | Yes — swap parts as prices ease |
| Best suited to | Living-room, controller-first play | Desk setup, longevity, your call on every part |
The verdict: Valve’s honesty about why the price is what it is deserves credit. But “the RAM crisis made everything expensive” cuts both ways. It’s exactly why locking yourself into a fixed-spec box right now, instead of a build you can adjust as the market settles, is the more expensive decision in the long run.
Fancy seeing what £879 gets you when every part is picked for your setup instead of Valve’s? Get in touch and we’ll talk you through it — or browse builds we’ve already sent out the door.