Western Digital 1TB SSD PCIe 4.0 NVMe M.2 2280

The WD Black SN770 is a 1TB PCIe 4.0 NVMe SSD that delivers near-flagship performance at a mid-range price. It's fast enough for gaming and Windows 11 boot duties, with solid endurance and a 5-year warranty. If you can find it under $200, it's one of the best value Gen4 drives available.

In our database, the SN770 lands at the 76th percentile for speed, which sounds modest until you look at what it's competing against. The 5,150 MB/s sequential read and 4,900 MB/s write are genuinely fast, and the 740K random read IOPS and 800K random write IOPS mean this drive handles small file operations well too. For gaming, that translates to quick level loads and minimal texture pop-in. For Windows 11 boot times, you're looking at single-digit seconds from power button to desktop.

The DRAM-less design is worth addressing directly. Older DRAM-less drives had noticeable stutter under sustained writes, but the SN770 uses HMB (Host Memory Buffer) to borrow a slice of your system RAM for mapping tables. In practice, this works well for gaming and general use. The endurance rating of 600 TBW is above average for a 1TB drive, and the thermal management keeps things from throttling under load, which matters if you're slamming it with large file transfers.

The Samsung 990 PRO is the obvious benchmark here. It's faster on paper, with higher sequential reads and better sustained write performance thanks to its DRAM cache, but it also costs noticeably more. If you're doing heavy video editing or constant large file transfers, the 990 PRO is worth the premium. For gaming and general use, the SN770 gets you 90% of the way there for less money.

The Crucial T500 is another strong competitor, and it trades blows with the SN770 depending on the workload. The T500 has a DRAM cache and slightly better sustained performance, but the SN770 often undercuts it on price. The Kingston Fury Renegade and Team Group MP44 are also in this conversation, but the SN770's combination of brand reliability, warranty support, and real-world performance keeps it competitive. If you're on a strict budget, the SN770 is hard to beat when it's on sale.

The SN770's value story is a bit of a rollercoaster depending on where you shop. We're seeing it listed between $175 and $270 in the US across two listings, which is a $95 spread. At the lower end, this drive is an absolute steal. At the upper end, you're creeping into territory where faster drives like the Samsung 990 PRO start to make more sense. Newegg currently has the better deal based on what we're seeing, so if you're buying, check there first. For the performance you're getting, anything under $200 makes this one of the best value Gen4 drives on the market.

The WD Black SN770 WDS100T3X0E is a 1TB M.2 NVMe SSD that sits in that sweet spot between budget drives and flagship PCIe 4.0 monsters. It's DRAM-less, which used to be a red flag, but WD's controller and firmware tuning have made that less of an issue than it used to be. You're looking at 5,150 MB/s read and 4,900 MB/s write on paper, which puts it well above any PCIe 3.0 drive and comfortably in the upper tier of Gen4 drives without the flagship price tag.

People searching for a fast boot drive or a game library upgrade will find a lot to like here. It's not the absolute fastest Gen4 drive on the market, but it's close enough that most people won't notice the difference in daily use. The 600 TBW endurance rating and 5-year warranty are solid for a drive in this class, and the 1.75 million hour MTBF is about what you'd expect from WD's in-house NAND.

One thing to keep in mind: this drive is backwards-compatible with PCIe 3.0, but you'll leave a lot of performance on the table if you drop it in an older board. On a Gen3 slot, you're capped around 3,500 MB/s, which is still way faster than any SATA SSD, but you won't get the full 5,150 MB/s this drive is capable of.

Skip the SN770 if you're doing heavy sustained write workloads like 4K video editing or constant large file transfers. The DRAM-less design means sustained write performance will dip under long workloads, and a drive with a DRAM cache like the Samsung 990 PRO or Crucial T500 will serve you better. Also skip it if you're on a PCIe 3.0 motherboard and don't plan to upgrade anytime soon. You'll pay for Gen4 speeds you can't use, and a cheaper Gen3 drive will give you the same real-world experience. And if you need more than 1TB, look at the 2TB version or consider a larger capacity drive from the start.

Should you buy the WD Black SN770? If you're building a gaming PC or upgrading from a SATA SSD or older NVMe drive, yes, absolutely. This drive delivers fast boot times, quick game loads, and reliable performance at a price that undercuts most of its direct competitors. The DRAM-less design is a non-issue for the vast majority of users, and the 5-year warranty gives you peace of mind.

The main caveat is your motherboard. If you're still on PCIe 3.0, you won't see the full speed this drive is capable of, and you might be better off saving money with a cheaper Gen3 drive. But if you have a Gen4 slot, or you're planning to upgrade soon, the SN770 is a smart buy that won't disappoint.