Lexar SSD NM1090 PRO 4TB Review
4TB · PCIe 5.0 NVMe · 14,000 MB/s read · PassMark #50
Specdex verdict The Lexar SSD NM1090 PRO 4TB has notable compromises — fine for casual use, but check the alternatives below if you have flexibility on budget.
The Lexar SSD NM1090 PRO 4TB scores 77,661 on PassMark Disk Score (rank #50 of ~100 consumer SSDs benchmarked). Score sourced from PassMark Disk Score (July 2026 snapshot).
Specdex doesn't run benchmarks in-house. The verdict is an editorial assessment based on manufacturer specs and public reviewer consensus. See methodology.
Lexar SSD NM1090 PRO 4TB versus its closest rivals
- +Strong PCIe 5.0 performance at PassMark rank #50
- +Pro-tier controller and DRAM cache for sustained throughput
- −DRAM-less controllers on lower-tier variants may throttle under sustained writes
- −Pricing varies — confirm current retail before purchase
Who's the Lexar SSD NM1090 PRO 4TB for?
Quick verdicts for the most common buyer profiles, derived from the sub-scores above.
Compute scores trail current top-tier — look at our step-up alternatives below if performance is the priority.
Mid-tier pricing at $400 — review whether the score-per-dollar lines up against the cheaper alternatives we recommend.
In the box
What you get when you unbox the Lexar SSD NM1090 PRO 4TB.
- SSD
- M.2 mounting screw
- Heatsink (where applicable)
- Software activation key (Pro tier)
Standard contents — region/SKU may vary; confirm at retailer.
Sources & benchmarks
Cited, not generatedSpecdex does not run benchmarks in-house. We're rolling out cited public benchmark data category by category — PassMark for CPUs and GPUs is wired today; DXOMark, RTINGS, Geekbench, and NotebookCheck will follow.
Sources we use when available: PassMark for CPU/GPU, Geekbench Browser for synthetic, DXOMark for camera scores, RTINGS for TVs, monitors, and headphones. See methodology.
Specifications
Source · www.storagereview.com/review/lexar-professional-nm1090-pro-review-affordable-gen5-performance| Specification | Value |
|---|---|
| DRAM | yes, ~1GB LPDDR4X per TB |
| Specification | Value |
|---|---|
| Sequential read | 14,000 MB/s |
| Sequential write | 12,000 MB/s |
| Random read | 2,100,000 IOPS |
| Random write | 1,700,000 IOPS |
| NAND | 232-layer Micron B58R 3D TLC |
| Endurance | 2,800 TBW |
| Specification | Value |
|---|---|
| Warranty | 5 years |
| Specification | Value |
|---|---|
| Form factor | M.2 2280 |
| Interface | PCIe 5.0 x4 NVMe 2.0 |
| Controller | Silicon Motion SM2508 (6nm) |
| PassMark Disk Score | 77,661 |
| PassMark rank | #50 of 100 consumer SSDs |
Cheaper alternatives to the Lexar SSD NM1090 PRO 4TB
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Step up from the Lexar SSD NM1090 PRO 4TB
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Also consider
Where the Lexar SSD NM1090 PRO 4TB appears on Specdex
Curated lists, spec rankings, and buying guides where this product is mentioned or ranked.