Side-by-side: WD_BLACK SN850X 2TB ($199) vs Crucial P310 2TB ($155). $/TB winner, specs, real-world picks for May 2026.
Gen 4 at 2 TB is one of the most contested SSD segments in 2026, and WD_BLACK SN850X 2TB versus Crucial P310 2TB captures that competition well. The decision rarely comes down to peak speeds — both drives saturate typical workloads.
Hardware-wise, the WD_BLACK SN850X 2TB runs on the proprietary WD G2 silicon, optimized for the WD_BLACK line. The Crucial P310 2TB pairs an E27T controller built specifically for DRAM-less Gen 4 SSDs.
Prices favor the Crucial P310 2TB by $22.00/TB ($77.50/TB versus $99.50/TB). Not a huge gap, but enough to be the tiebreaker if performance is similar.
The DRAM-vs-HMB question divides opinion: WD_BLACK SN850X 2TB's on-board DRAM theoretically helps under sustained workloads, while Crucial P310 2TB's HMB approach has matured enough that most users won't see the difference. Pick on price if everything else is similar.
WD_BLACK SN850X 2TB earns higher TBW ratings (1,200 vs 880 TBW) — relevant for sustained write workloads, irrelevant for everything else.
For PS5 expansion, both are PCIe Gen 4 M.2 2280 drives that meet Sony's minimum spec (7,100 MB/s read). The console can't take advantage of speeds beyond that, so save money by choosing the Crucial P310 2TB. For content creators routinely rendering 4K or 8K video, the WD_BLACK SN850X 2TB's 6,600 MB/s sustained write is the deciding factor — multi-GB project files land noticeably faster than on the alternative. Note for handheld gamers: M.2 2280 is the desktop/laptop standard. Steam Deck and the ROG Ally line need 2230 drives — neither WD_BLACK SN850X 2TB nor Crucial P310 2TB fits without modification.
Go with the WD_BLACK SN850X 2TB for a higher TBW endurance rating (1,200 TBW), and a dedicated DRAM cache chip. WD_BLACK's SN850X earned its reputation through consistent sustained performance under gaming workloads — fewer micro-stutters during open-world streaming than budget alternatives.
Go with the Crucial P310 2TB for the lower retail price ($155 vs $199), and better $/TB economics ($77.50/TB).