SSD family comparison · Updated July 27, 2026 · Prices verified July 27, 2026

Crucial P310 vs WD_BLACK SN7100

Crucial P310 vs WD_BLACK SN7100 at every capacity: prices, $/TB, speeds, endurance. Which to buy in July 2026 — full family comparison.

Verdict: Crucial P310 vs WD_BLACK SN7100

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 Crucial P310 family wins at most capacities — its best configuration lands at $129.75/TB versus $142.50/TB for the WD_BLACK SN7100's best. During the 2026 NAND shortage that spread compounds quickly at 2-4 TB.

Crucial P310 vs WD_BLACK SN7100: price by capacity

Capacity	Crucial P310	WD_BLACK SN7100
2 TB	$292 · $146.00/TB	$290 · $145.00/TB	Full comparison →
4 TB	$519 · $129.75/TB	$570 · $142.50/TB	Full comparison →

Spec comparison (4 TB models)

Generation

Gen 4

Interface

PCIe 4.0 x4

Sequential read

7,100 MB/s

7,000 MB/s

Sequential write

6,000 MB/s

6,700 MB/s

Controller

Phison E27T

SanDisk A101

DRAM cache

No (HMB)

Warranty

5 years

PS5 compatible

Yes

FAQ

Crucial P310 vs WD_BLACK SN7100 — common questions

Which is cheaper per TB, Crucial P310 or WD_BLACK SN7100?

As of July 27, 2026, the Crucial P310 family offers the better $/TB: its best configuration is $129.75/TB versus $142.50/TB for the WD_BLACK SN7100. The exact winner varies by capacity — see the capacity table for per-size pricing.

Which capacity of the Crucial P310 or WD_BLACK SN7100 should I buy?

2 TB is the sweet spot for most builds: better $/TB than 1 TB and better availability than 4 TB+ during the 2026 NAND shortage. Check the capacity table above — the per-TB winner can flip between capacities.

Are the Crucial P310 and WD_BLACK SN7100 PS5 compatible?

Both families are PCIe NVMe M.2 2280 and work in the PS5 expansion slot. The PS5 caps sustained speeds at ~5,500 MB/s, so pick on price, not peak speed, and add a heatsink.