Compare WD_BLACK SN8100 2TB and Crucial T705 2TB: prices, speeds, $/TB. Which to buy in July 2026? Full spec breakdown.
Both the WD_BLACK SN8100 2TB and Crucial T705 2TB sit in the Gen 5 category at 2 TB, so the matchup turns on controller efficiency, cache topology, and current pricing rather than raw class differences.
Hardware-wise, the WD_BLACK SN8100 2TB runs on the SMI SM2508 — a 6nm Gen 5 controller running notably cooler than first-gen Phison E26 designs. The Crucial T705 2TB pairs an original Phison E26 chip that defined the Gen 5 reference design.
PS5 owners get no measurable benefit from either drive's peak speed because Sony's internal NVMe controller throttles to ~5,500 MB/s; treat WD_BLACK SN8100 2TB and Crucial T705 2TB as interchangeable here and let price decide. Heavy write workloads — video editing, RAW photo libraries, backup operations — favor the Crucial T705 2TB's 12,700 MB/s sustained write speed. 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.
How do these two fit the wider Gen 5 2 TB field? Out of 11 tracked drives, the WD_BLACK SN8100 2TB is #5 on $/TB and the Crucial T705 2TB is #8. 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 SN8100 2TB and Crucial T705 2TB on $/TB:
Pick the WD_BLACK SN8100 2TB if you value the lower retail price ($380 vs $406), and better $/TB economics ($190.00/TB).
Pick the Crucial T705 2TB if you value higher sustained writes (12,700 MB/s). Crucial typically delivers the best $/TB among DRAM-equipped NVMes because Micron sells direct rather than going through brand licensing.