BIWIN Black Opal NV7400 Gen4 SSD 1TB vs Lexar EQ790 M.2 2280 PCIe Gen4x4 NVMe SSD

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

all judged against NVMe SSDs at a similar price

The Lexar EQ790 M.2 2280 PCIe Gen4x4 NVMe SSD scores 6.6/10 overall, ahead of the BIWIN Black Opal NV7400 Gen4 SSD 1TB at 6.2/10.

The BIWIN Black Opal NV7400 Gen4 SSD 1TB leads on efficiency and thermals.

The Lexar EQ790 M.2 2280 PCIe Gen4x4 NVMe SSD leads on endurance and warranty.

They score the same on performance and software.

BIWIN Black Opal NV7400 Gen4 SSD 1TB

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

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Lexar EQ790 M.2 2280 PCIe Gen4x4 NVMe SSD

6.6/10verdict: wait for deal

The Lexar EQ790 is a PCIe Gen4x4 M.2 2280 drive for buyers who want a long warranty and high endurance ratings at the 2TB size. It suits desktop builds and homelab machines where airflow is decent or a heatsink is fitted. It is less suited to anyone who needs steady writes over very large transfers or a laptop with tight cooling.

Typically about £134.99 in the UK when we researched itCheck price at Amazon UK

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Scores, criterion by criterion

Criterion	Weight	BIWIN Black Opal NV7400 Gen4 SSD 1TB	Lexar EQ790 M.2 2280 PCIe Gen4x4 NVMe SSD
Performance	35%	6/10	6/10
Endurance	20%	6/10	8/10
Warranty	15%	8/10	9/10
Efficiency and thermals	15%	6/10	5/10
Software	15%	5/10	5/10
Overall		6.2/10	6.6/10

Specifications

Spec	BIWIN Black Opal NV7400 Gen4 SSD 1TB	Lexar EQ790 M.2 2280 PCIe Gen4x4 NVMe SSD
Interface	PCIe Gen4 x4, NVMe 2.0	PCIe Gen4x4
Sequential read	7400 MB/s per manufacturer spec table for 1TB; manufacturer headline and Amazon listing say up to 7450 MB/s	Up to 7000 MB/s (1TB)
Sequential write	6500 MB/s	Up to 6000 MB/s (1TB, base page; the heatsink page and a press report give 5000 MB/s)
Endurance (2TB)	1000 TBW (1TB)	600 TBW (1TB); 1200 TBW (2TB)
Form factor	M.2 2280, single-sided	M.2 2280, 80 x 22 x 2.45 mm (base model)
Warranty	5-year limited warranty with free replacement	Five-year limited warranty

Strengths and weaknesses

BIWIN Black Opal NV7400 Gen4 SSD 1TB

+ 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 BIWIN Black Opal NV7400 Gen4 SSD 1TB review ›

Lexar EQ790 M.2 2280 PCIe Gen4x4 NVMe SSD

+ 1,200 TBW endurance rating at 2TB
+ Five-year limited warranty
+ Heatsink version available as a separate SKU
− Base model has no heatsink
− Throttling recorded once cache fills at 224 GB
− Sequential write figure conflicts between sources

Skip it if:

Buyers who move several hundred gigabytes in single transfers and need steady write speed.
Laptop owners with poor cooling who don't want a heatsink or can't fit one.
Anyone who needs published firmware tooling or an update history.

Read the full Lexar EQ790 M.2 2280 PCIe Gen4x4 NVMe SSD review ›

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