Samsung 990 EVO 1TB PCIe 4.0 x4 NVMe M.2 2280

The Samsung 990 EVO is a fast, power-efficient PCIe 4.0 drive that also works in PCIe 5.0 x2 slots. It hits 5,000 MB/s read and 4,200 MB/s write, which is plenty for gaming and everyday use. The DRAM-less design is the main compromise, but HMB keeps random performance surprisingly strong. Prices range from USD 125 to USD 310, so shop around and don't overpay. For most buyers, especially gamers and laptop users, this is a solid pick.

The headline numbers are 5,000 MB/s read and 4,200 MB/s write. That puts it in the 72nd percentile for speed in our database, which is solid but not earth-shattering. For context, that's roughly double what you'd get from a good SATA SSD and noticeably faster than the 970 EVO Plus it replaces. Real-world translation: games load fast, large file transfers don't make you question your life choices, and Windows boots before you can grab a coffee.

Random 4K performance is where things get interesting. One owner benchmarked this against their 2TB 980 PRO and saw better random 4K numbers on the 990 EVO, 46/161 MB/s read/write versus 30/112 MB/s on the older drive. That's the HMB doing its job. But sustained performance is a question mark. Without onboard DRAM, long sequential writes can dip once the cache fills up. For typical use, gaming, booting, app launches, you'll rarely notice. If you're doing massive video file dumps on the regular, this isn't the drive for that.

The Crucial T500 is probably the most direct competitor here. It's also a PCIe 4.0 drive with similar speeds, but it comes with DRAM onboard. If you're doing heavy sustained writes, the T500 will hold its speed better. The WD_BLACK SN7100 is another strong option, especially if you're building a gaming rig and want that WD gaming pedigree. Both of those tend to sit in a similar price bracket when the 990 EVO is at its higher price points.

Then there's the Lexar Professional NM1090 PRO and Kingston FURY Renegade G5. These are more enthusiast-oriented drives with higher peak speeds, but you'll pay for it. The Micron T710 is interesting because it's often cheaper and still delivers solid performance. The 990 EVO's real advantage is that Samsung brand trust and the 5-year warranty. People buy Samsung because they know what they're getting. That counts for something, even if the raw specs don't always top the charts.

Pricing on this drive is all over the place depending on where you shop. We're seeing USD 125 to USD 310 across five listings, which is a wild spread for the same 1TB drive. That's a USD 185 difference. If you're paying anywhere near the top of that range, stop. You're getting fleeced. At the low end, around USD 125, this is a genuinely good deal for a Samsung drive with these speeds.

The value proposition gets murkier when you look at the 990 EVO Plus, which several owners mention is often close in price. If the Plus is within USD 10-15, it's probably worth the upgrade for the DRAM cache alone. But if you find the 990 EVO at the bottom of that price range, it's a solid budget pick that punches above its weight for gaming and general use.

The Samsung 990 EVO is one of those drives that makes you do a double take. It's a PCIe 4.0 x4 drive that also works in PCIe 5.0 x2 slots, which is a neat trick for future-proofing without paying the full Gen 5 tax. Samsung is positioning this as the sensible middle child between the older 970 EVO Plus and the pricier 990 PRO. And honestly, for most people, it's probably the one you should actually buy.

Who's this for? Gamers who want fast load times without spending a fortune, laptop owners who care about power efficiency, and anyone doing a storage expansion on a mid-range build. The 1TB capacity hits the sweet spot for an OS drive plus a decent game library. Samsung claims up to 70% better performance per watt over the 970 EVO Plus, which matters if you're running this in a laptop where every watt counts.

The catch? It's DRAM-less. Samsung leans on HMB technology, which borrows a chunk of your system RAM to act as a cache. That's fine for most everyday use, but it's the kind of thing that makes enthusiasts raise an eyebrow. We'll dig into what that actually means for you in a bit.

If you're a content creator who regularly moves large video files or does heavy sustained writes, this drive isn't for you. The DRAM-less design means performance can dip once the cache fills up, and that's exactly the scenario where you'd notice it. Look at the Crucial T500 or the Samsung 990 EVO Plus instead, both of which have onboard DRAM and hold their speed better under load.

Also skip this if you're running an iMac 2020 27-inch, since the storage is soldered and there's no M.2 slot to work with. And if you're the type who wants the absolute fastest drive available, the Lexar NM1090 PRO or Kingston FURY Renegade G5 will give you higher peak speeds, though you'll pay more for the privilege. For everyone else, especially gamers and laptop users on a budget, the 990 EVO is a genuinely good buy.

For most people, the 990 EVO is a great pick. Gamers will love the fast load times and the price, assuming you shop around. Laptop users benefit from the power efficiency, which translates to better battery life. It's a set-it-and-forget-it drive that just works, and that's what most buyers actually want.

If you're doing heavy content creation, video editing, or anything that involves moving massive files around constantly, look elsewhere. The DRAM-less design will show its limits under sustained load. The 990 EVO Plus or Crucial T500 are better fits for that workload. But for a boot drive or game library on a budget, this is one of the easiest recommendations we can make.