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

Samsung 9100 PRO vs Samsung 990 EVO Plus

Samsung 9100 PRO vs Samsung 990 EVO Plus at every capacity: prices, $/TB, speeds, endurance. Which to buy in July 2026 — full family comparison.

Verdict: Samsung 9100 PRO vs Samsung 990 EVO Plus

This page compares the Samsung 9100 PRO and Samsung 990 EVO Plus 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 Samsung 9100 PRO family leads on sequential read (14,800 vs 7,250 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 990 EVO Plus: $146.25/TB at its best capacity, against $200.00/TB for the Samsung 9100 PRO. If budget drives the decision, the Samsung 990 EVO Plus is the default.

The cache design differs: Samsung 9100 PRO carries on-board DRAM, Samsung 990 EVO Plus borrows system RAM via HMB. This matters for database-style workloads and long video-editing sessions, not for everyday use.

Samsung 9100 PRO vs Samsung 990 EVO Plus: price by capacity

Capacity	Samsung 9100 PRO	Samsung 990 EVO Plus
1 TB	$249 · $249.00/TB	$244 · $244.00/TB	Full comparison →
2 TB	$400 · $200.00/TB	$369 · $184.50/TB	Full comparison →
4 TB	$898 · $224.50/TB	$585 · $146.25/TB	Full comparison →
8 TB	$2000 · $250.00/TB	—

Spec comparison (4 TB models)

Generation

Gen 5

Interface

PCIe 5.0 x4

PCIe 4.0x4/5.0x2

Sequential read

14,800 MB/s

7,250 MB/s

Sequential write

13,400 MB/s

6,300 MB/s

Controller

Samsung Presto

Samsung Piccolo

DRAM cache

Yes

No (HMB)

Warranty

5 years

PS5 compatible

Yes

FAQ

Samsung 9100 PRO vs Samsung 990 EVO Plus — common questions

Which is cheaper per TB, Samsung 9100 PRO or Samsung 990 EVO Plus?

As of July 27, 2026, the Samsung 990 EVO Plus family offers the better $/TB: its best configuration is $146.25/TB versus $200.00/TB for the Samsung 9100 PRO. The exact winner varies by capacity — see the capacity table for per-size pricing.

Which capacity of the Samsung 9100 PRO or Samsung 990 EVO Plus 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 Samsung 990 EVO Plus 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.