Lexar SSD NM1090 PRO 4TB
4TB · PCIe 5.0 NVMe · 14,000 MB/s read · PassMark #50
Lexar SSD ARES PRO 2TB
2TB · PCIe 5.0 NVMe · 14,000 MB/s read · PassMark #54
Dead heat — it comes down to priorities.
In our weighted Specdex score, Lexar SSD NM1090 PRO 4TB lands at 73 and Lexar SSD ARES PRO 2TB at 73. With scores tied, the decision hinges on which sub-scores matter most to you.
Pick Lexar SSD NM1090 PRO 4TB if…
- ✓Strong PCIe 5.0 performance at PassMark rank #50
- ✓Pro-tier controller and DRAM cache for sustained throughput
Pick Lexar SSD ARES PRO 2TB if…
- ✓Capable NVMe drive at PassMark rank #54
- ✓14 GB/s-class PCIe 5.0 reads in a slim single-sided M.2 layout
Winner by scenario
Derived from the sub-score breakdown · not a separate testValue for money
Lexar SSD ARES PRO 2TBSpecdex score per dollar at MSRP
Lexar SSD ARES PRO 2TB more score per dollar ($200 vs $400).
Score breakdown
Specs side-by-side
| Spec | Lexar SSD NM1090 PRO 4TB | Lexar SSD ARES PRO 2TB |
|---|---|---|
| Form factor | M.2 2280 | M.2 2280 (single-sided, 2.45mm) |
| Interface | PCIe 5.0 x4 NVMe 2.0 | PCIe 5.0 x4 NVMe |
| Sequential read | 14,000 MB/s | 14,000 MB/s |
| Sequential write | 12,000 MB/s | 10,000 MB/s |
| Random read | 2,100,000 IOPS | 2,000,000 IOPS |
| Random write | 1,700,000 IOPS | 1,500,000 IOPS |
| Controller | Silicon Motion SM2508 (6nm) | 8-channel, reported MaxioTek MAP1806 class |
| NAND | 232-layer Micron B58R 3D TLC | 3D TLC |
| DRAM | yes, ~1GB LPDDR4X per TB | DRAM-less (HMB, per ComputerBase report) |
| Endurance | 2,800 TBW | 1,500 TBW |
| Warranty | 5 years | 5 years |
| PassMark Disk Score | 77,661 | 76,799 |
| PassMark rank | #50 of 100 consumer SSDs | #54 of 100 consumer SSDs |
Lexar SSD NM1090 PRO 4TB
- +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
Lexar SSD ARES PRO 2TB
- +Capable NVMe drive at PassMark rank #54
- +14 GB/s-class PCIe 5.0 reads in a slim single-sided M.2 layout
- −DRAM-less controllers on lower-tier variants may throttle under sustained writes
- −Newer drives out-perform this generation on sequential + random 4K
FAQ: Lexar SSD NM1090 PRO 4TB vs Lexar SSD ARES PRO 2TB
Which is better, Lexar SSD NM1090 PRO 4TB or Lexar SSD ARES PRO 2TB? +
Both score 73 on our weighted rubric — tied. Your best pick depends on the sub-scores above.
Is Lexar SSD NM1090 PRO 4TB worth the price? +
At $400, Lexar SSD NM1090 PRO 4TB delivers a Specdex score of 73 — strongest in passmark_disk.
Is Lexar SSD ARES PRO 2TB worth the price? +
At $200, Lexar SSD ARES PRO 2TB delivers a Specdex score of 73 — strongest in passmark_disk.
Does Lexar SSD NM1090 PRO 4TB or Lexar SSD ARES PRO 2TB last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.
Which is the better value, Lexar SSD NM1090 PRO 4TB or Lexar SSD ARES PRO 2TB? +
Lexar SSD ARES PRO 2TB — more score per dollar ($200 vs $400). Specdex score per dollar at MSRP.