Lexar SSD NM1090 PRO 2TB
2TB · PCIe 5.0 NVMe · 14,000 MB/s read · PassMark #44
Viper PV593 1TB
1TB · PCIe 5.0 NVMe · 14,000 MB/s read · PassMark #39
Viper PV593 1TB takes it — here’s why.
In our weighted Specdex score, Lexar SSD NM1090 PRO 2TB lands at 75 and Viper PV593 1TB at 76. That puts Viper PV593 1TB ahead by 1 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Lexar SSD NM1090 PRO 2TB if…
- ✓Strong PCIe 5.0 performance at PassMark rank #44
- ✓Pro-tier controller and DRAM cache for sustained throughput
Pick Viper PV593 1TB if…
- ✓Strong PCIe 5.0 performance at PassMark rank #39
Winner by scenario
Derived from the sub-score breakdown · not a separate testValue for money
Viper PV593 1TBSpecdex score per dollar at MSRP
Viper PV593 1TB more score per dollar ($75 vs $225).
Score breakdown
Specs side-by-side
| Spec | Lexar SSD NM1090 PRO 2TB | Viper PV593 1TB |
|---|---|---|
| Form factor | M.2 2280 | M.2 2280 |
| Interface | PCIe 5.0 x4 NVMe 2.0 | PCIe 5.0 x4 NVMe 2.0 |
| Sequential read | 14,000 MB/s | 14,000 MB/s |
| Sequential write | 13,000 MB/s | 10,000 MB/s |
| Random read | 2,100,000 IOPS | — |
| Random write | 2,000,000 IOPS | — |
| Controller | Silicon Motion SM2508 (6nm) | Silicon Motion SM2508 (TSMC 6nm, 8-channel) |
| NAND | 232-layer Micron B58R 3D TLC | 232-layer Micron B58R 3D TLC |
| DRAM | yes, ~1GB LPDDR4X per TB | yes (DRAM cache) |
| Endurance | 1,400 TBW | 700 TBW |
| Warranty | 5 years | 5 years |
| PassMark Disk Score | 79,270 | 80,079 |
| PassMark rank | #44 of 100 consumer SSDs | #39 of 100 consumer SSDs |
Lexar SSD NM1090 PRO 2TB
- +Strong PCIe 5.0 performance at PassMark rank #44
- +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
Viper PV593 1TB
- +Strong PCIe 5.0 performance at PassMark rank #39
- −DRAM-less controllers on lower-tier variants may throttle under sustained writes
- −Pricing varies — confirm current retail before purchase
FAQ: Lexar SSD NM1090 PRO 2TB vs Viper PV593 1TB
Which is better, Lexar SSD NM1090 PRO 2TB or Viper PV593 1TB? +
Viper PV593 1TB scores 76 on our weighted rubric — ahead by 1. Your best pick depends on the sub-scores above.
Is Lexar SSD NM1090 PRO 2TB worth the price? +
At $225, Lexar SSD NM1090 PRO 2TB delivers a Specdex score of 75 — strongest in passmark_disk.
Is Viper PV593 1TB worth the price? +
At $75, Viper PV593 1TB delivers a Specdex score of 76 — strongest in passmark_disk.
Does Lexar SSD NM1090 PRO 2TB or Viper PV593 1TB 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 2TB or Viper PV593 1TB? +
Viper PV593 1TB — more score per dollar ($75 vs $225). Specdex score per dollar at MSRP.