Compare WD_BLACK SN7100 4TB and Crucial T500 2TB: prices, speeds, $/TB. Which to buy in May 2026? Full spec breakdown.
Both run on Gen 4 hardware but at different capacities: 4 TB for the WD_BLACK SN7100 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 SN7100 4TB runs on the SanDisk A101 — a more recent design from the WD/SanDisk lineup. The Crucial T500 2TB pairs Phison's E25 silicon, found in many DRAM-equipped Gen 4 SSDs.
There's a modest pricing advantage for the WD_BLACK SN7100 4TB: $79.75/TB compared with $94.50/TB. For typical gaming and productivity, this becomes the deciding factor when specs are close.
The Crucial T500 2TB carries a dedicated DRAM chip for FTL (Flash Translation Layer) mapping; the WD_BLACK SN7100 4TB relies on HMB (Host Memory Buffer), borrowing 64 MB from system RAM. The practical gap shows up only under sustained random write loads.
On warranty endurance the WD_BLACK SN7100 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.
Heading to a PlayStation 5? Both drives drop into the console's M.2 bay and report identical real-world benchmarks since the PS5 caps storage at PCIe 4.0 speeds. The WD_BLACK SN7100 4TB wins this matchup on $/TB. 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.
Pick the WD_BLACK SN7100 4TB if you value better $/TB economics ($79.75/TB), and a higher TBW endurance rating (2,400 TBW).
Pick the Crucial T500 2TB if you value the lower retail price ($189 vs $319), and a dedicated DRAM cache chip. Crucial typically delivers the best $/TB among DRAM-equipped NVMes because Micron sells direct rather than going through brand licensing.