The WD Black SN850X is a powerful, high-end PCIe 4.0 SSD that's near the top of the heap in almost every category. The SN850X is available in high capacities and has an optional RGB-laden heatsink for most models, but pricing and the questionable Game Mode 2.0 keep it from being the very best.
Our editors hand-pick these products using a variety of criteria: they can be direct competitors targeting the same market segment or can be similar devices in terms of size, performance, or features.
WD's Black SN850 drive was already a very good flagship drive but with an upgrade from 96-layer to 112-layer NAND and improvements to the firmware, the SN850X takes over that mantle with great effect. But the price could do with some tweaking.
The WD Black SN850X takes the company's flagship PCIe 4.0 gaming SSD and makes it even better, offering higher capacity and improved test results (including a new PC Labs record in the 3DMark Storage benchmark). About all it lacks is hardware-based security.
The WD Black SN850X is a powerful, high-end PCIe 4.0 SSD that's near the top of the heap in almost every category. The SN850X is available in high capacities and has an optional RGB-laden heatsink for most models, but pricing and the questionable Game Mode 2.0 keep it from being the very best.
WD’s Black SN850X is an excellent, and slightly more affordable alternative to Seagate’s might FireCuda 530. It’s also especially adept at real-world transfers and random operations.
WD succeeds in its ambition to tempt PC gamers and enthusiasts away from other brands plying the premium consumer SSD space. Want a big-name, no-nonsense SSD that makes a mockery of most benchmarks? WD Black SN850X 2TB fits the bill nicely.
Western Digital's newest member of its legendary "Black" series is an absolute dream for gamers or anyone that values real-world results over marketing fluff. BiCS 5 may or may not be the best-performing flash currently in circulation. We couldn't determine that concretely today as hoped.
Overall, the WD BLACK SN850X is a gaming NVMe drive that stacks up very well against other PCIe Gen4 mainstream consumer SSDs in performance. Across the board in our synthetic tests, the SN850X found itself at the top of the pack (usually behind the Samsung 980 Pro), measuring a peak bandwidth of 5.93GB/s read and 1.84GB/s write in 64K sequential performance.