Lexar NQ790 4TB SSD tech specs (2026)
Quick answer
NQ790 (4TB) produced by Lexar may work on PCIe Gen4 that is undoubtedly faster than PCIe 3.
Read: 7400 MB/s Write: 6500 MB/s Endurance: 600 TBW Warranty: 1 years Interface: M.2 4.0 x 4
How fast is the Lexar NQ790 4TB and more details read below on this site.

Controller & Memory
Lexar's 4TB NQ790 internal SSD is powered by Maxiotech MAP-1602A controller. This SSD has DRAM No for mapping data, located on the drive. The NQ790 comes equipped with YMTC 128-LTLC flash memory. NVMe SSD is offered also in 2 TB and 1 TB capacities.
Storage Comparisons:
NQ790 Performance & Benchmarks
Drive use PCIe M.2 4.0 x 4 bus with write speeds equals to 6500 Mbps, and sequential read speeds 7400 MB/s. It also has input/output performance 7400000 on reading and 6500000 on writing operations per second.
Lexar NQ790 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 NQ790 4 TB (this drive): 7,400 MB/s read, 6,500 MB/s write
Lexar NQ790 vs Competitors
See how the NQ790 stacks up against other M.2 4.0 x 4 drives in our database:
Compare with rival drives:
Endurance, TBW & Warranty
Lexar give 1 years of warranty that limited by endurance 600 TBW. As well it has 2000000 million hours mean time between failure.
Lexar NQ790 4 TB Specifications
| Category | Value |
|---|---|
| Capacity [?] | 4 TB |
| Interface [?] | M.2 4.0 x 4 |
| Controller [?] | Maxiotech MAP-1602A |
| Memory type [?] | YMTC 128-LTLC |
| DRAM [?] | No |
| Read speed (MB/s) [?] | 7400 |
| Write speed (MB/s) [?] | 6500 |
| Read IOPS [?] | 7400000 |
| Write IOPS [?] | 6500000 |
| Endurance (TBW) [?] | 600 |
| MTBF (million hours) [?] | 2000000 |
| Warranty (years) [?] | 1 |
Verdict: Is the NQ790 Worth It in 2026?
NQ790 (4TB) produced by Lexar may work on PCIe Gen4 that is undoubtedly faster than PCIe 3. The sequential write speed is 6500 Mbps, that is faster than has most of rivals. The Lexar NQ790 has endurance 600 TBW, that is not very much in comparison with closest competitors. After evaluating all the facts, we highly recommend to have Lexar NQ790 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!