Samsung 850 EVO 2TB SATA III 2.5"

The Samsung 850 EVO 2TB is a reliable SATA SSD that hits the 540 MB/s ceiling of the SATA III interface. It's great for resurrecting older machines, but the pricing is rough, ranging from USD 400 to USD 834. For most people, a modern NVMe drive or a cheaper SATA alternative like the Crucial MX500 makes more sense. Buy this only if you specifically need a 2.5" SATA drive with strong endurance and you trust the Samsung name.

The 850 EVO tops out at 540 MB/s sequential read and 520 MB/s write. That's the ceiling for SATA III, and this drive hits it. For context, a modern NVMe drive will do 5,000 to 7,000 MB/s, so we're talking about a 10x difference in raw throughput. But here's the thing: for booting an OS, launching apps, and general desktop use, the jump from a hard drive to this SSD is massive. The jump from this SSD to an NVMe drive is noticeable, but nowhere near as dramatic. If you're coming from a 7,200 RPM spinning drive, you'll feel like you bought a new computer.

Random performance is where the 850 EVO shows its age a bit. 98K random read IOPS and 90K random write IOPS put it in the 44th percentile of all SSDs in our database. That's middle of the pack, which is fine for a SATA drive but nothing to write home about. The endurance rating is stronger, landing in the 65th percentile. The TLC NAND with Samsung's V-NAND architecture was designed to handle a lot of write cycles, and the 2TB capacity means the wear is spread across more cells. For a drive that might end up as a scratch disk or a heavily used boot drive, that's reassuring.

Stacked against the current competition, the 850 EVO looks like a relic. The Western Digital Black SN850X, Kingston FURY Renegade G5, Crucial T500, SanDisk WD_BLACK, and Seagate FireCuda 530R are all NVMe drives that absolutely demolish the 850 EVO in raw speed. The SN850X, for example, pushes 7,300 MB/s sequential reads. That's over 13x faster than the 850 EVO's 540 MB/s. If you have an M.2 slot, there is no reason to even consider this Samsung drive.

But the comparison isn't entirely fair. Those NVMe drives are built for modern systems. The 850 EVO is for machines that predate M.2 or that only have SATA ports. In that context, the real competitors are other 2.5" SATA SSDs like the Crucial MX500 or the WD Blue 3D NAND. Against those, the 850 EVO holds its own on endurance and reliability, but it loses on price. The Crucial MX500 2TB typically sells for under USD 150, and it offers similar SATA III performance. The Samsung's 5-year warranty and V-NAND endurance are nice, but they're not worth a USD 250 premium.

Here's where things get weird. The 850 EVO 2TB is an old drive, and the pricing reflects that in a bad way. We're seeing listings from USD 400 to USD 834 across just two US sellers. That's a USD 434 spread, which is absurd for a SATA SSD in 2024. The best deal is on Newegg, where you can find it at the lower end of that range. But even at USD 400, you're paying a premium for a drive that's been out of production for years.

For comparison, you can get a modern 2TB NVMe drive for well under USD 200 these days. A 2TB SATA SSD from a current generation will run you around USD 150 to USD 200. So why would anyone pay USD 400 for an 850 EVO? The answer is mostly availability and compatibility. If you specifically need a 2.5" SATA drive with this kind of endurance rating and you trust the Samsung name, this is what's out there. But the value proposition is rough. The affordability percentile of 8% tells the story: this is one of the worst-priced drives in our database relative to what it offers.

The Samsung 850 EVO 2TB is a bit of a time capsule at this point. It was a big deal when it launched, one of the first drives to bring 3D V-NAND to the consumer market. And honestly, for a SATA drive, it still holds up in a specific kind of way. This is not the drive you buy if you want to flex benchmark numbers in 2024. It's the drive you buy because you have an older laptop or desktop that's still running a spinning hard drive, and you want to give it a new lease on life without spending a fortune.

Who is this for? Someone with an older machine that only has SATA ports. Maybe a MacBook Pro from the early 2010s, an old Dell or HP tower, or a home server that just needs reliable bulk storage. The 2TB capacity is generous for a SATA drive, and the 2.5" form factor means it'll drop into almost anything. If you're building a new PC with an M.2 slot, look elsewhere. But if you're resurrecting a machine from the Obama administration, this is a solid candidate.

What makes it interesting is the endurance story. Samsung built these drives with 3D V-NAND, which was a big deal for longevity. The drive carries a 5-year warranty and a 2,000,000 hour MTBF rating. That's the kind of reliability spec that makes people comfortable using it as a boot drive in a machine they don't want to think about. The performance numbers are capped by the SATA III interface, but within that constraint, the 850 EVO was always a top performer in its class.

If you have a modern system with an M.2 slot, do not buy this drive. A current NVMe SSD will cost less, take up less space, and run circles around the 850 EVO in every performance metric. The WD Black SN850X, Crucial T500, or Kingston FURY Renegade G5 are all better choices for new builds. Even if you're stuck with SATA, the Crucial MX500 or WD Blue 3D NAND offer nearly identical real-world performance at a fraction of the cost.

Also skip this if you're on a tight budget. The affordability percentile of 8% means this is one of the worst value propositions in our entire SSD database. You can get a 2TB SATA SSD from a reputable brand for under USD 200, and it'll do everything the 850 EVO does for everyday use. The only reason to pay the premium is if you specifically need the endurance rating or you're replacing an existing 850 EVO and want to keep things consistent.

If you have an older laptop or desktop with a SATA port and you want to breathe new life into it, the 850 EVO 2TB will do the job. It's reliable, it's fast enough for everyday use, and the 2TB capacity means you won't have to worry about running out of space. The free Samsung Magician software is genuinely useful for firmware updates and drive health monitoring, and the Data Migration tool makes cloning your old drive painless. For a machine that's going to be used for web browsing, office work, or light media editing, this drive is more than adequate.

But if you're building a new system or you have an M.2 slot available, skip this entirely. A modern NVMe drive will cost less and perform dramatically better. And even if you're stuck with SATA, the Crucial MX500 or WD Blue 3D NAND offer similar performance at a fraction of the price. The 850 EVO's only real advantage is its endurance rating and the Samsung brand name, and those are hard to justify at USD 400 to USD 834.