SSD family comparison · Updated October 19, 2026 · Prices verified October 19, 2026

Samsung 9100 PRO vs WD_BLACK SN8100

Samsung 9100 PRO vs WD_BLACK SN8100 at every capacity: prices, $/TB, speeds, endurance. Which to buy in October 2026 — full family comparison.

Verdict: Samsung 9100 PRO vs WD_BLACK SN8100

This page compares the Samsung 9100 PRO and WD_BLACK SN8100 product families across all capacities we track. Per-capacity pricing changes the verdict more often than specs do, so start with the capacity table and then check the spec differences below.

On paper, the WD_BLACK SN8100 family leads on sequential read (14,900 vs 14,800 MB/s). In practice, both saturate typical consumer workloads — the speed gap matters mainly for sustained multi-GB transfers.

Per-terabyte economics favor the Samsung 9100 PRO: $199.50/TB at its best capacity, against $210.00/TB for the WD_BLACK SN8100. If budget drives the decision, the Samsung 9100 PRO is the default.

Samsung 9100 PRO vs WD_BLACK SN8100: price by capacity

Capacity	Samsung 9100 PRO	WD_BLACK SN8100
1 TB	$249 · $249.00/TB	—
2 TB	$399 · $199.50/TB	$485 · $242.50/TB	Full comparison →
4 TB	$1118 · $279.50/TB	$840 · $210.00/TB	Full comparison →
8 TB	$2280 · $285.00/TB	—

Spec comparison (4 TB models)

Generation

Gen 5

Interface

PCIe 5.0 x4

Sequential read

14,800 MB/s

14,900 MB/s

Sequential write

13,400 MB/s

11,000 MB/s

Controller

Samsung Presto

SMI SM2508

DRAM cache

Yes

Warranty

5 years

PS5 compatible

Yes

FAQ

Samsung 9100 PRO vs WD_BLACK SN8100 — common questions

Which is cheaper per TB, Samsung 9100 PRO or WD_BLACK SN8100?

As of October 19, 2026, the Samsung 9100 PRO family offers the better $/TB: its best configuration is $199.50/TB versus $210.00/TB for the WD_BLACK SN8100. The exact winner varies by capacity — see the capacity table for per-size pricing.

Which capacity of the Samsung 9100 PRO or WD_BLACK SN8100 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 Samsung 9100 PRO and WD_BLACK SN8100 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.