Western Digital WD Blue SN5000 4TB PCIe 4.0 x4 NVMe M.2 2280

A 4TB budget beast with a giant SLC cache that makes up for its missing DRAM. Just don't pay full price, and keep it cool.

The headline numbers are 5,500 MB/s read and 5,000 MB/s write, which puts it solidly in the upper-middle of the PCIe 4.0 pack. But the real story is that 341GB SLC cache. That's enormous for a DRAM-less drive, and it means you can move huge files around without the speed falling off a cliff. Random performance is a genuine standout, landing in the top 10% of drives we've tracked. The catch? It runs hot under sustained load, and the lack of DRAM shows up in heavy, mixed workloads. For gaming and everyday use, you'll never notice. For constant 4K video scrubbing, you might.

Against the Samsung 9100 PRO or Crucial T710, the SN5000 loses on raw speed and sustained performance, those are PCIe 5.0 drives in a different league. But they also cost way more per gigabyte. The Kingston Fury Renegade is a closer fight, it has DRAM and better sustained writes, but you'll pay a premium for it. The Seagate FireCuda 530R is another solid alternative if you want DRAM and don't mind spending more. For a pure budget play, the SN5000 is the value king, just know what you're giving up.

Pricing is all over the map. In the US, you'll see it anywhere from $480 to $620, and in Canada the spread is even wilder, from CAD 695 to CAD 1,700. That's a massive gap, so shop around. At the low end, this is a screaming deal for 4TB of fast TLC storage. At the high end, you're getting into territory where you should just buy something with DRAM. Check the listings and don't overpay.

The WD Blue SN5000 4TB is a budget-friendly storage monster that punches above its weight class. You're getting a massive 4TB of TLC NAND with a surprisingly huge 341GB SLC cache, which is the secret sauce here. It's DRAM-less, but Western Digital's nCache 4.0 and a 200MB Host Memory Buffer pick up a lot of the slack. For most people, this is the drive to buy when you just need a ton of fast space without selling a kidney.

If you're editing 4K video all day or running a database server, this isn't your drive. The lack of DRAM and the heat under sustained load will frustrate you. Go grab a Kingston Fury Renegade or Seagate FireCuda 530R instead, they cost more but they're built for that kind of abuse.

Buy it if you need 4TB of fast storage for games, media, or as a secondary drive, and you find it at the low end of the price range. The huge SLC cache and strong random performance make it feel faster than its spec sheet suggests for everyday tasks. But if you're doing heavy sustained writes or running it in a tight laptop with poor airflow, the heat and lack of DRAM will annoy you. At the right price, it's an easy recommendation.