Pros & Cons

Best For

Performance & Real-World Usage

Specifications

Samsung 870 QVO

Storage arguments usually get framed as though one drive has to win, which is how people end up paying NVMe prices for a drive that holds their Steam library. The 870 QVO is not competing with fast drives. It’s competing with spinning rust and with buying less storage than you need.

At that job it’s good.

What the SATA limit actually costs you

Samsung rates it at 560 MB/s read and 530 MB/s write, and those numbers aren’t really about the drive: they’re the ceiling of the SATA III bus itself. Any modern SATA SSD lands in the same place. A current NVMe drive runs several times faster on paper.

Whether you notice depends entirely on what the drive is doing. Copying a large file, you’ll notice. Loading a game, much less than the spec gap suggests, because game loading has never been purely a sequential-read problem and modern engines stream assets rather than blocking on one big read. Running an operating system off it, you’ll notice constantly: that workload is thousands of small scattered reads, which is exactly where the interface overhead compounds.

Hence the rule: bulk storage yes, OS drive no. Not because it’s slow in the abstract, but because those two jobs stress completely different things.

The QLC question

QLC stores four bits per cell where TLC stores three. More bits per cell means more capacity from the same silicon, which is the entire reason this drive is cheap, and it means less margin for error in reading each cell back.

In practice that shows up in two ways. Sustained writes slow down once the drive’s faster cache region is exhausted, so a very large continuous write won’t hold its opening speed. And QLC’s endurance rating is lower than TLC’s.

Samsung rates the 1TB model at 360TB written with a three-year warranty, which for a drive holding games and archives is not a constraint you will run into: that storage is written once and read many times. If you’re doing something genuinely write-heavy, like recording video continuously or hosting a busy database, buy TLC and don’t think about it again.

That’s the honest downside, and it’s a real one: this drive is cheap because of a tradeoff, not because Samsung is being generous.

Where it belongs

A second drive in a desktop that already has an NVMe boot drive. An archive for photos or video that you want on something more reliable than a mechanical disk. An upgrade to an older laptop or desktop where there is no M.2 slot and SATA is the only option available. This is the case where the drive is genuinely transformative, because the thing it’s replacing is a hard disk.

Where it doesn’t belong: a new build. If the motherboard has a spare M.2 slot, an NVMe drive of the same capacity costs somewhat more and is better in every respect, and you avoid running a cable. The 870 QVO earns its place by being large and cheap, not by being the sensible default.

Verdict

Buy it as a second drive, sized generously, for things that need to sit somewhere and occasionally be read. It does that well and costs little.

Buy something else if it will hold your operating system, if you’re assembling a new machine with M.2 slots free, or if your workload writes continuously. None of those are the job this drive is for.

Where to buy

Buy on Amazon

Independent review. Affiliate links support JavaUpdate.