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Black Opal NV7400 Gen4 SSD vs Samsung 990 PRO 2TB

Researched, not hands-on tested.How we review ›

both judged against NVMe SSDs at a similar price

The Samsung 990 PRO 2TB scores 7.4/10 overall, ahead of the Black Opal NV7400 Gen4 SSD at 6.2/10.

The Black Opal NV7400 Gen4 SSD leads on efficiency and thermals.

The Samsung 990 PRO 2TB leads on performance, endurance, warranty and software.

Black Opal NV7400 Gen4 SSD

Black Opal NV7400 Gen4 SSD

6.2/10verdict: wait for deal

The Black Opal NV7400 is a PCIe 4.0 M.2 2280 drive for builders who want fast sequential speeds and a 5-year warranty. It suits gaming PCs, workstations and laptops where a single-sided drive with a bundled thermal pad is useful. It is less suited to anyone who needs steady writes under heavy sustained load or strong small random I/O.

Typically about £268.99 in the UK when we researched itCheck price at Amazon UK (opens in a new tab, affiliate link)

Affiliate link. As an Amazon Associate I earn from qualifying purchases. Details

Samsung 990 PRO 2TB

Samsung 990 PRO 2TB

7.4/10verdict: wait for deal

The Samsung 990 PRO 2TB is for people who want a fast PCIe 4.0 M.2 drive for a workstation, development machine or homelab host. It suits those who value responsiveness and a five-year warranty and who will pay a premium for them. Buyers should plan for cooling, because owners report it runs warm under sustained load.

Typically about £329 in the UK when we researched itCheck price at Amazon UK (opens in a new tab, affiliate link)

Affiliate link. As an Amazon Associate I earn from qualifying purchases. Details

Scores, criterion by criterion

CriterionWeightBlack Opal NV7400 Gen4 SSDSamsung 990 PRO 2TB
Performance35%6/108/10
Endurance20%6/108/10
Warranty15%8/109/10
Efficiency and thermals15%6/105/10
Software15%5/106/10
Overall6.2/107.4/10

Specifications

SpecBlack Opal NV7400 Gen4 SSDSamsung 990 PRO 2TB
InterfacePCIe Gen4 x4, NVMe 2.0PCIe Gen 4.0 x4, NVMe 2.0
Sequential read7400 MB/s per manufacturer spec table for 1TB; manufacturer headline and Amazon listing say up to 7450 MB/s7,450 MB/s
Sequential write6500 MB/s6,900 MB/s
Endurance (2TB)1000 TBW (1TB)1,200 TBW
Form factorM.2 2280, single-sidedM.2 (2280)
Warranty5-year limited warranty with free replacement5 years limited

Strengths and weaknesses

Black Opal NV7400 Gen4 SSD

  • + Rated 7400MB/s read and 6500MB/s write
  • + 5-year warranty with free replacement
  • + Single-sided M.2 2280 with graphene thermal pad
  • − DRAM-less, and writes slow once cache is exhausted
  • − Weaker small random I/O than a rival
  • − Reliability reports mixed and anecdotal

Skip it if:

  • Buyers who need steady write speed under long sustained loads
  • Anyone whose workload leans on small random I/O
  • Buyers who need documented firmware update tooling
Read the full Black Opal NV7400 Gen4 SSD review ›

Samsung 990 PRO 2TB

  • + Rated 7,450 MB/s sequential read and 1,550K random write IOPS
  • + 1,200 TBW endurance at 2TB
  • + Five-year limited warranty
  • − Runs warm under sustained load, per owner reports
  • − Heatsink version is a separate SKU that costs extra
  • − Owners report a price premium over competing drives

Skip it if:

  • Buyers choosing mainly on lowest price
  • Anyone with a poorly cooled slot who doesn't want to buy the heatsink version
  • Buyers who need published sustained-write or power-draw figures before committing
Read the full Samsung 990 PRO 2TB review ›

More comparisons

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