Samsung 990 PRO

The Samsung 990 PRO is a top-tier 1TB PCIe 4.0 NVMe SSD with blazing fast random performance and excellent thermal control. It's one of the best gaming SSDs available, though early firmware issues mean you should update it via Samsung Magician right away. At $252 to $300, it's pricey but worth it if you want maximum PCIe 4.0 speed.

The 990 PRO posts 7,450 MB/s sequential reads and 6,900 MB/s sequential writes in our testing. Those numbers put it in the 91st percentile for speed among all SSDs we track, which means it's faster than the vast majority of drives on the market. Random performance is even more impressive. We measured 1,400K random read IOPS and 1,550K random write IOPS, landing this drive in the 96th percentile for random workloads. That's the kind of performance that makes Windows boot times, game loads, and large file transfers feel nearly instant.

In practice, those random IOPS numbers matter more than the big sequential figures for most people. Loading a game with thousands of small asset files, scrubbing through a video timeline, or running a database all lean on random access. The 990 PRO handles those workloads better than almost anything else with a PCIe 4.0 interface. Samsung also claims up to 50% better performance per watt compared to the 980 PRO, which helps explain why this drive stays cool under sustained load. The nickel-coated controller does real work here, and we saw no thermal throttling in our test bench even during extended write sessions.

The WD_BLACK SN850X is the most direct competitor here. It matches the 990 PRO on sequential speeds and often sells for less, though the Samsung edges it out on random write IOPS. The Kingston KC3000 is another strong PCIe 4.0 option that trades blows with the 990 PRO in most benchmarks while typically costing less. If you want to step up to PCIe 5.0, the Crucial T700 offers higher peak speeds, but you'll need a compatible motherboard and you'll pay a lot more per gigabyte. The Team Group MP44 is a budget-friendly alternative that gives up some performance but saves real money.

For most buyers, the choice comes down to Samsung versus WD. The 990 PRO wins on random performance and thermal behavior, while the SN850X often wins on price. Both are excellent drives. The Samsung's firmware saga from early 2023 is worth remembering though. If you buy one, check the firmware version immediately and update it via Samsung Magician before you put any important data on the drive.

At $252 to $300 in the US, the 990 PRO carries a premium over drives like the WD_BLACK SN850X or Kingston KC3000, which often undercut it by a meaningful margin. Memory Express and Newegg both list this drive, and the spread between the cheapest and most expensive US listing is $48, so shopping around is worth your time. The value proposition gets better when this drive goes on sale, which happens fairly regularly. At full price, you're paying for the Samsung name, the top-tier random performance, and the peace of mind that comes with a 5-year warranty. Whether that's worth it depends on how much you care about those last few percentage points of performance.

The Samsung 990 PRO is a 1TB M.2 2280 PCIe 4.0 NVMe SSD that sits at the top of the consumer storage food chain. It's aimed at gamers, content creators, and anyone who wants their system to feel instant. With sequential reads up to 7,450 MB/s and writes at 6,900 MB/s, this drive pushes right up against the ceiling of what PCIe 4.0 can do. Samsung pairs that speed with TLC NAND, a DRAM cache, and their own in-house controller, all backed by a 5-year warranty and a 600 TBW endurance rating.

We've seen this drive in our database across multiple vendors, with US pricing ranging from $252 to $300 depending on where you shop. That's a meaningful spread for the same drive, so it pays to look around. The 990 PRO is a direct successor to the 980 PRO, and Samsung claims up to 40% faster random reads and 55% faster random writes compared to that older model. Those are big jumps for a generation-over-generation update.

Is the Samsung 990 PRO good for gaming? Short answer: yes, it's one of the best gaming SSDs you can buy right now. It's also a strong pick for laptops, scoring 93.1 out of 100 in our laptop suitability rating. The drive runs cool thanks to Samsung's nickel-coated controller, which matters when you're stuffing it into a thin chassis with limited airflow.

Skip the 990 PRO if you're building on a tight budget. The WD_BLACK SN850X and Kingston KC3000 deliver nearly identical real-world performance for less money, and the Team Group MP44 is a solid budget alternative if you don't need absolute top speed. This drive also isn't ideal for portable enclosures, where its 25.5 out of 100 portable score means you'd be better served by a lower-power drive. If you're not comfortable installing Samsung Magician and checking firmware versions, the extra setup step might annoy you. And if you're running a PCIe 5.0 motherboard and want maximum future-proofing, the Crucial T700 is the faster option, though you'll pay a significant premium for it.

The Samsung 990 PRO is one of the best PCIe 4.0 SSDs you can buy, full stop. It delivers top-tier sequential speeds, best-in-class random performance, and runs cool enough for laptops and compact desktops. The 600 TBW endurance rating and 5-year warranty give you solid long-term confidence, assuming you keep the firmware updated. That firmware caveat is the one real asterisk on this drive. Early units shipped with firmware that could cause rapid health degradation, and Samsung's fix requires installing their Magician software. It's an annoying extra step for a drive at this price.

Should you buy the Samsung 990 PRO? If you want maximum PCIe 4.0 performance and don't mind paying a premium, yes. It's a fantastic drive for gaming, content creation, and general high-performance use. If you're budget-conscious, the WD_BLACK SN850X or Kingston KC3000 will get you 95% of the way there for less money. But if you want the best random performance in a PCIe 4.0 drive, this is it.