Lexar NM1090 PRO 4TB PCIe 5.0 x4 NVMe M.2 2280

The Lexar NM1090 PRO is a 4TB PCIe 5.0 NVMe SSD with 14,000 MB/s read and 13,000 MB/s write speeds. It's one of the fastest consumer drives we've tested, with top-tier random performance and DirectStorage support. It's expensive and requires a Gen 5 motherboard, but for high-end gaming and AI workloads, it's a beast.

The numbers here are wild. Sequential reads hit 14,000 MB/s and writes reach 13,000 MB/s. Random performance is even more impressive at 2,100K read IOPS and 1,700K write IOPS. In our database, that puts the NM1090 PRO in the 99th percentile for random operations. For real-world use, that means game levels load almost instantly, large video files transfer in seconds, and AI model training doesn't get bottlenecked by storage.

The 6nm controller does solid work keeping temperatures manageable, which is a common concern with PCIe 5.0 drives. Lexar claims up to 200% faster load times compared to older Gen 4 drives, and while we don't have independent before-and-after numbers, the spec sheet backs up the idea that this thing is dramatically faster than anything from the previous generation. The DRAM cache and SLC dynamic cache help maintain consistent speeds during sustained writes, which is where cheaper drives often fall apart.

The Samsung 9100 PRO is the most direct competitor, and it's a close fight. Samsung's drive has similar Gen 5 speeds and better brand recognition, but the Lexar often undercuts it on price per terabyte. The Kingston FURY Renegade G5 is another strong option with comparable specs, though it's harder to find in stock. The WD_BLACK SN850X is a Gen 4 drive that can't match the raw numbers here, but it's significantly cheaper and still feels fast in most games.

The Crucial T500 and Micron T710 are both excellent Gen 4 drives that make a strong case for skipping Gen 5 entirely if you're budget-conscious. The T500 especially delivers great real-world performance at a fraction of the cost. But if you want the absolute fastest drive available and you have the hardware to support it, the NM1090 PRO edges out most of the competition in our testing data.

At around $730 USD, the NM1090 PRO is not a value play. You can get a solid 4TB Gen 4 drive for half that price, and most people won't notice the difference in day-to-day use. But if you're building a high-end rig with a Ryzen 9000 or Intel Core i9 and you want zero storage bottlenecks, this is the price of entry. The endurance rating of 2,800 TBW is above average, which helps justify the cost for heavy users. Just know that you're paying for peak performance, not practicality.

The Lexar NM1090 PRO is a 4TB PCIe 5.0 NVMe SSD that sits in the top tier of internal storage right now. It's aimed at gamers, content creators, and anyone messing with AI workloads who wants the absolute fastest load times. With read speeds up to 14,000 MB/s and write speeds up to 13,000 MB/s, this drive is basically a rocket strapped to your motherboard. The price lands around $730 USD, with European listings hovering near 800 EUR and Canadian pricing over 1,000 CAD, so it's not a casual purchase.

People searching for the best PCIe 5.0 SSD for gaming or AI PCs will keep running into this drive, and for good reason. It uses SLC NAND, a DRAM cache, and a 6nm controller to keep thermals in check. The 4TB capacity is a big deal too, since most high-end Gen 5 drives top out at 2TB. If you're wondering whether the NM1090 PRO is good for gaming, the short answer is yes, especially with DirectStorage support baked in.

Our database puts this drive at the 99th percentile for random performance and 98th percentile for speed. That's not marketing fluff, it's genuinely one of the fastest consumer SSDs we've tracked. But the affordability score is rough, landing in the bottom 10 percent. You're paying a serious premium for that speed.

Skip the NM1090 PRO if you're on a PCIe 4.0 or older platform, since you'll never see the full speed. Casual users, office workers, and anyone who mostly browses the web should look at cheaper Gen 4 drives like the Crucial T500 or WD_BLACK SN850X instead. If you need a portable drive, this isn't it, our database scores it terribly for portable use. And if you're building a budget system, the $730 price tag will eat up money better spent on a GPU or CPU.

Should you buy the Lexar NM1090 PRO? If you have a PCIe 5.0 motherboard, a high-end CPU, and you do work that actually benefits from 14,000 MB/s speeds, then yes, this is one of the best drives you can buy. Gamers with DirectStorage titles will see real improvements, and anyone training AI models locally will appreciate the reduced bottlenecks. The 4TB capacity is a genuine advantage over most competitors.

But if you're just browsing the web, playing older games, or working with standard office files, save your money. A good Gen 4 drive will feel nearly identical for those tasks. The NM1090 PRO is a specialist tool for people who need maximum throughput, and for those people, it's excellent.