Which is better, WD_BLACK SN850X 2TB or Crucial P310 2TB? July 2026 side-by-side with prices, specs, and verdict.
A like-for-like comparison: both drives target the same buyer segment at the same Gen 4 2 TB class. The interesting question becomes which manufacturer's implementation aged better.
Hardware-wise, the WD_BLACK SN850X 2TB runs on WD's G2 controller — manufactured by SanDisk and tuned for low-latency gaming workloads. The Crucial P310 2TB pairs the DRAM-less Phison E27T, common in value-tier 2TB and 4TB Gen 4 drives.
Crucial P310 2TB's $146.00/TB pricing edges out WD_BLACK SN850X 2TB's $174.00/TB by about 16%. Not transformative, but a real difference at 2-4 TB capacities where it adds up.
WD_BLACK SN850X 2TB bundles a DRAM cache chip; Crucial P310 2TB is DRAM-less. This sounds like a big deal but reviewers have been arguing for years about whether it actually matters in consumer use. For most workloads, no.
Endurance leans toward the WD_BLACK SN850X 2TB at 1,200 TBW (versus 880 TBW for the Crucial P310 2TB). For most consumers this never becomes a real concern — 600 TBW lasts a decade of normal writes — but heavy daily writers should weight it.
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. Video editors will gravitate toward the WD_BLACK SN850X 2TB for its write headroom (6,600 MB/s sustained). Project saves and proxies move faster, which compounds across a workday. Heads-up — these are full-length 2280 drives. Steam Deck and most current handhelds require shorter 2230 modules, so check capacity-specific 2230 variants if that's your target platform.
Market context: we track 11 Gen 4 2 TB drives, and by price per terabyte the WD_BLACK SN850X 2TB currently sits #8 while the Crucial P310 2TB sits #4. Neither is a value leader right now — if $/TB is your priority, check the cheaper alternatives below before committing.
As of July 27, 2026, these tracked drives undercut both the WD_BLACK SN850X 2TB and Crucial P310 2TB on $/TB:
Lean toward the WD_BLACK SN850X 2TB when a higher TBW endurance rating (1,200 TBW), and a dedicated DRAM cache chip top your priority list. Among Gen 4 flagships, the SN850X strikes a sweet spot — premium silicon at sub-Samsung pricing, with WD's established RMA process to back it up.
Lean toward the Crucial P310 2TB when the lower retail price ($292 vs $348), and better $/TB economics ($146.00/TB) top your priority list.