Lexar NM790 4TB NVMe SSD technical specs (2026)
Quick answer
Lexar NM790 4TB support PCIe 4.0 that is twice faster than PCIe Gen3.
Read: 7400 MB/s Write: 6500 MB/s Endurance: 1 TBW Warranty: 3 years Interface: M.2 4.0 x 4
How fast is the Lexar NM790 4TB and extra specs explore on this site.

Controller & Memory
Lexar NM790 4TB use Maxiotech MAP1602A controller. This SSD has DRAM No for mapping data, located on the SSD. The NM790 comes equipped with YMTC 232-L TLC memory. This NVMe is offered also in four capacities, including 8 TB, 2 TB, 512 GB and 1 TB volume sizes.
Storage Comparisons:
NM790 Performance & Benchmarks
Internal SSD use PCIe M.2 4.0 x 4 expansion standard with maximum read speeds 7400 MB/s, and write speeds equals to 6500 MB/s. It also has input/output performance 6500000 on writing and 7400000 on reading operations.
Lexar NM790 4 TB vs M.2 4.0 x 4 peers
Switch between sequential throughput and random IOPS to see how this drive stacks up against other M.2 4.0 x 4 SSDs in our database. The highlighted bar is the drive on this page — click any other bar to open that drive.
- Patriot Viper PV593 1 TB: 14,500 MB/s read, 14,000 MB/s write
- Patriot Viper PV593 2 TB: 14,500 MB/s read, 14,000 MB/s write
- Patriot Viper PV593 4 TB: 14,500 MB/s read, 14,000 MB/s write
- Patriot Viper PV573 2 TB: 14,000 MB/s read, 12,000 MB/s write
- Lexar NM790 4 TB (this drive): 7,400 MB/s read, 6,500 MB/s write
Lexar NM790 vs Competitors
See how the NM790 stacks up against other M.2 4.0 x 4 drives in our database:
Compare with rival drives:
Endurance, TBW & Warranty
Lexar provide 3 years warranty limited by endurance 1 TBW. The NM790 has 2000000 million hours mean time between failure.
Lexar NM790 4 TB Specifications
| Category | Value |
|---|---|
| Capacity [?] | 4 TB |
| Interface [?] | M.2 4.0 x 4 |
| Controller [?] | Maxiotech MAP1602A |
| Memory type [?] | YMTC 232-L TLC |
| DRAM [?] | No |
| Read speed (MB/s) [?] | 7400 |
| Write speed (MB/s) [?] | 6500 |
| Read IOPS [?] | 7400000 |
| Write IOPS [?] | 6500000 |
| Endurance (TBW) [?] | 1 |
| MTBF (million hours) [?] | 2000000 |
| Warranty (years) [?] | 3 |
Verdict: Is the NM790 Worth It in 2026?
Lexar NM790 4TB support PCIe 4.0 that is twice faster than PCIe Gen3. The write speed is 6500 Mb/s, that is faster than has most of rivals. The Lexar NM790 provide possibility to write 1 TBW, that is not much compared to nearest rivals. Weighing all these factors, our editor strongly advise to purchase Lexar NM790 4TB for your PC.
+ Pros
- Excellent writing speed
- PCIe 4.0
- Capacity
- Cons
- Writing speed
Buy this or similar SSD Storage:
Video Review
Lexar NM790 M 2 SSD Review - A Single Sided 4tb SSD perfect for your Laptop!