Which is better, WD_BLACK SN850X 4TB or Crucial T500 2TB? July 2026 side-by-side with prices, specs, and verdict.
Both run on Gen 4 hardware but at different capacities: 4 TB for the WD_BLACK SN850X 4TB versus 2 TB for the Crucial T500 2TB. Whether the larger drive's $/TB advantage justifies the higher upfront cost depends on how much you actually need.
Hardware-wise, the WD_BLACK SN850X 4TB runs on WD's second-generation G2 in-house controller, tuned for sustained gaming I/O. The Crucial T500 2TB pairs Phison's E25 silicon, found in many DRAM-equipped Gen 4 SSDs.
At a 28% price gap, the Crucial T500 2TB needs to be measurably better in your specific use case to justify the spend. For gaming and general PC use, the WD_BLACK SN850X 4TB's lower $/TB tilts the value equation decisively in its favor.
On warranty endurance the WD_BLACK SN850X 4TB carries 2,400 TBW against Crucial T500 2TB's 1,200 TBW. Both will outlast typical use, but the gap matters if you're doing professional content work.
If this purchase is for a PS5 storage expansion, the comparison flattens — Sony's PCIe Gen 4 controller normalizes both WD_BLACK SN850X 4TB and Crucial T500 2TB to roughly equal in-game load times. The cheaper drive is the smart pick. Both drives use the 2280 form factor, which is too long for Steam Deck or ROG Ally — you'd need a 2230 variant if either manufacturer offers one, or a dedicated handheld-format drive instead.
Market context: the WD_BLACK SN850X 4TB ranks #4 of 6 Gen 4 4 TB drives we track by $/TB, while the Crucial T500 2TB ranks #9 of 11 Gen 4 2 TB drives. Neither is a value leader right now — if $/TB is your priority, check the cheaper alternatives below before committing.
Lean toward the WD_BLACK SN850X 4TB when better $/TB economics ($133.75/TB), and a higher TBW endurance rating (2,400 TBW) top your priority list. The SN850X has been the best-selling Gen 4 NVMe in PCPartPicker builds for two consecutive years — Game Mode 2.0 prioritizes I/O when supported titles need it.
Lean toward the Crucial T500 2TB when the lower retail price ($369 vs $535) top your priority list. Crucial typically delivers the best $/TB among DRAM-equipped NVMes because Micron sells direct rather than going through brand licensing.