Crucial P310 vs WD_BLACK SN7100 at every capacity: prices, $/TB, speeds, endurance. Which to buy in September 2026 — full family comparison.
Comparing Crucial P310 against WD_BLACK SN7100 model-to-model means looking across the whole capacity range: the winner at 1 TB isn't always the winner at 4 TB, because per-TB pricing shifts with capacity. Here's the full picture.
The Crucial P310 posts the higher sequential read spec (7,100 MB/s vs 7,000 MB/s). Whether that shows up for you depends on workload: game load times won't change, sustained transfers will.
On value, the WD_BLACK SN7100 family wins at most capacities — its best configuration lands at $142.25/TB versus $143.50/TB for the Crucial P310's best. During the 2026 NAND shortage that spread compounds quickly at 2-4 TB.
| Capacity | Crucial P310 | WD_BLACK SN7100 | |
|---|---|---|---|
| 2 TB | $299 · $149.50/TB | $305 · $152.50/TB | Full comparison → |
| 4 TB | $574 · $143.50/TB | $569 · $142.25/TB | Full comparison → |