SATA Is No Longer the Cheap Option.

Here is a sentence that would have been nonsense two years ago: you can buy a 2TB NVMe drive for less money than a 1TB SATA drive.

Not less per gigabyte. Less money. Twice the capacity, smaller bill, and several times the speed.

We track UK storage prices daily, and the numbers have quietly crossed over. The rule everyone repeats in build threads — “go SATA if you’re on a budget” — has stopped being true at the capacities most people actually buy.

Here is what the data says, and what you should do about it.

Like-for-Like at 1TB

Maybe that felt like a trick — different capacities, after all. So here is the same comparison at matched capacity, which is how most people actually shop.

Why Did This Happen?

Three things collided.

1. AI ate the NAND supply

Memory makers have spent 2026 pointing their production at datacentre customers who pay more and buy in volume. Consumer drives get whatever is left. Silicon Motion’s SVP put it bluntly in an interview this year: the retail SSD market has “almost disappeared.” Analysts at TrendForce expect NAND prices to keep climbing through Q3 2026, just more slowly than the brutal first half.

2. SATA drives are made in small batches now

Here is the counterintuitive part. SATA hasn’t got expensive because it’s in demand — it’s got expensive because it isn’t. It’s a legacy product on legacy lines. Nobody is fighting to manufacture 2.5" drives at scale, so they lose the economies of scale that made them cheap in the first place. Low volume means high unit cost.

3. NVMe is where the competition is

Meanwhile every manufacturer is shipping M.2 drives, controllers are cheap and plentiful, and DRAM-less Gen 4 designs let brands hit aggressive price points. Competition pushes prices down. SATA has no such pressure — it just drifts upward with the NAND market.

The result: the budget tier fell out of the bottom of the market, and NVMe quietly filled the gap.

One Honest Caveat

This isn’t true at every capacity. Small SATA drives can still win on pure price-per-terabyte — a 512GB KingSpec SATA works out around £119/TB, which beats most 1TB NVMe drives on that specific measure.

But that is a slightly hollow victory. You’re buying half the storage, at a capacity that fills up almost immediately, on a slower interface. And if prices keep climbing the way analysts expect, buying small today means buying again later at a worse price.

At 1TB and 2TB — the capacities the overwhelming majority of people actually buy — NVMe wins on price, per-terabyte value, and speed simultaneously.

What To Actually Do

Check your motherboard first. If you have a free M.2 slot — even a Gen 3 one — there is essentially no argument for buying SATA in 2026.

Don’t pay for Gen 5 you can’t feel. A Gen 3 drive at 3,300 MB/s and a Gen 5 drive at 14,500 MB/s load games at almost identical speeds in the real world. The benchmark gap is enormous; the perceived gap is close to zero. Spend the difference on capacity instead.

Buy bigger than you think you need. This is the unusual bit of advice this year. Per-terabyte pricing rewards capacity heavily right now — a 2TB drive can genuinely cost less than a 1TB one — and with prices forecast to keep rising, the “I’ll upgrade later” plan is likely to cost you more, not less.

Don’t wait for a crash. There isn’t one coming in the near term. If you need storage, buy it; if you don’t, no amount of waiting is going to bring 2024 pricing back. We cover the full picture in our hard drive price surge report, and the technical differences in our NVMe vs SATA guide.