Lexar NM790 4TB NVMe SSD technical specs (2026)

Posted on by Raymond Chen

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.

Lexar NM790 4TB NVMe SSD technical specs

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.

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.

Performance comparison

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:

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

3.6 / 5 · 51 votes

Buy this or similar SSD Storage:

Samsung 980 Pro 2 TB

-57% $165
List Price: $379.99

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Video Review

Lexar NM790 M 2 SSD Review - A Single Sided 4tb SSD perfect for your Laptop!

Frequently Asked Questions

The Lexar NM790 has No. Dynamic Random-Access Memory makes drive work faster, but more expensive.

The Lexar NM790 due to the high density of memory chips require the installation of additional heat sink. It decrease temperature of the memory chips and controller. Some motherboards designed with thermal pads above or below the SSD for better productivity during heavy loads.

The NM790 4TB has maximum write speed 6500 Mbps, maximum read speed 7400 Mb/s. NVMe run on Maxiotech MAP1602A controller and M.2 4.0 x 4 interface standard. The NAND memory type is YMTC 232-L TLC.

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