Lexar NQ790 4TB SSD tech specs (2026)

Posted on by Raymond Chen

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.

Lexar NQ790 4TB SSD tech specs

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.

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.

Performance comparison

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:

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

3.5 / 5 · 110 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 NQ790 has No. Dynamic Random-Access Memory makes drive work faster, but more expensive.

The NQ790 4TB due to the high density of memory chips you need to install of additional heat sink. This will lower temperature of the controller and memory. Some motherboards or laptops designed with additional cooling above or below the SSD for better productivity during heavy loads.

The Lexar NQ790 has maximum write speed 6500 Mb/s, maximum read speed 7400 Mbps. It works on Maxiotech MAP-1602A controller and M.2 4.0 x 4 interface standard. The NAND flash memory type is YMTC 128-LTLC.

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