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Lexar 1TB NM790 NVMe SSD w/Heatsink, 7400/6500 MB/s, M.2 2280, PCIe Gen 4x4 | Compatible w/ PS5, Gamers & Content Creators, PC & Laptops, SLC Cache, Single-Sided Design, LNM790X001T-RN9NU
Lexar

Lexar 1TB NM790 NVMe SSD w/Heatsink (LNM790X001T-RN9NU)

Bottom line: The Lexar 1TB NM790 NVMe SSD w/Heatsink ($188.49 on Amazon as of 2026-10-06): 7400MB/s read, 6500MB/s write - 2x PCIe Gen 3 speeds; main trade-off: DRAM-less design leans on HMB 3.0 and host RAM.

$188.49

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Buy on Amazon — $188.49 Compare to similar ssds & storage

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For SSDs and PC storage upgrades, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ 7400MB/s read, 6500MB/s write - 2x PCIe Gen 3 speeds
  • ✓ Heatsink included; no separate PS5 cooler purchase needed
  • ✓ Up to 40% lower power draw than DRAM-cache Gen 4 SSDs
  • ✓ 1000TBW endurance rating on the 1TB model
  • ✓ Single-sided 2280 fits slim laptops and the PS5 bay

Cons

  • ✗ DRAM-less design leans on HMB 3.0 and host RAM
  • ✗ Sustained writes slow once the dynamic SLC cache fills
  • ✗ Heatsink height can block some CPU coolers and GPUs
  • ✗ 1TB fills fast with 100GB+ modern game installs

Manufacturer description

The Lexar NM790 with Heatsink brings PCIe Gen 4x4 speed to your PS5, desktop, or laptop without the thermal throttling that plagues bare M.2 drives. Sequential reads hit 7400MB/s and writes reach 6500MB/s, roughly double what a PCIe Gen 3 drive delivers, so level loads, 4K timeline scrubs, and multi-gigabyte project transfers stop being the part of your workflow you plan around. The integrated heatsink keeps the controller in its efficiency window under sustained load, and Lexar rates the 1TB NM790 for 1000TBW of endurance. What makes this drive unusual is how it gets there. Instead of an…

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SpecPicks Verdict

SpecPicks scored Lexar 1TB NM790 NVMe SSD w/Heatsink using a rating × review-volume × price-fit model applied to published specs and reviews across the ssds & storage category. Lexar's ssds & storage lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for ssds & storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Does the Lexar NM790 work in a PlayStation 5?

Yes. Lexar lists PS5 compatibility, and the drive is an M.2 2280 PCIe Gen 4x4 NVMe SSD with a heatsink already attached, so you do not need to source a separate cooler for the console's expansion bay.

How fast is the Lexar NM790 1TB?

Up to 7400MB/s sequential read and 6500MB/s sequential write, which Lexar rates as roughly 2x the throughput of a PCIe Gen 3 SSD. Real-world speeds vary with your motherboard, thermals, and workload.

Is a DRAM-less SSD with HMB 3.0 a problem?

The NM790 uses Host Memory Buffer 3.0 to borrow system RAM for the cache function instead of an onboard DRAM chip. Lexar cites up to 40% lower power consumption versus DRAM-cache Gen 4 drives as the trade-off benefit.

How long will the 1TB NM790 last?

Lexar rates the 1TB model at 1000TBW (terabytes written). For typical gaming and content-creation use that is well beyond a normal upgrade cycle. Check the product listing for current warranty terms.

Will the heatsink fit my laptop or motherboard?

The drive is single-sided M.2 2280, which helps in slim laptops and tight M.2 slots, but the attached heatsink adds height. Measure clearance under your GPU, CPU cooler, or laptop panel before ordering.

Key Features

  • [1TB] Exceptional performance up to 7400MB/s read, 6500MB/s write; 1000TBW
  • 2x faster than PCIe Gen 3 SSDs
  • Designed with a heatsink to keep your rig cool for better performance and power efficiency
  • Up to 40% less power consumption than DRAM cache-enabled PCIe Gen 4 SSDs
  • Host Memory Buffer (HMB) 3.0 activates the DRAM cache function of your device for a smoother transfer speed and seamless performance

Full Specifications

BrandLexar
ColorBlack
Model NameNM790
Read Speed7400 megabytes_per_second
Form FactorM2
Media Speed6500 megabits_per_second
Model NumberLNM790X001T-RN9NU
CompatibilityPC, PS5
Built-In MediaSSD
Hard-Drive Size1000 GB
Mfr Part NumberLNM790X001T-RN9NU
Number of Items1
Special FeatureCompatible with PS5, Heatsink
Installation TypeInternal Hard Drive
Compatible DevicesDesktop, Laptop, PS5
Data Transfer Rate7400 megabytes_per_second
Enclosure MaterialNand Flash
Additional FeaturesCompatible with PS5, Heatsink
Hard Disk InterfaceNVMe
Warranty DescriptionFive-year limited warranty
Full listing titleLexar 1TB NM790 NVMe SSD w/Heatsink, 7400/6500 MB/s, M.2 2280, PCIe Gen 4x4 | Compatible w/ PS5, Gamers & Content Creators, PC & Laptops, SLC Cache, Single-Sided Design, LNM790X001T-RN9NU

Ready to buy?

Lexar 1TB NM790 NVMe SSD w/Heatsink, 7400/6500 MB/s, M.2 2280, PCIe Gen 4x4 | Compatible w/ PS5, Gamers & Content Creators, PC & Laptops, SLC Cache, Single-Sided Design, LNM790X001T-RN9NU is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $188.49

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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Lexar 1TB NM790 NVMe SSD w/Heatsink, 7400/6500 MB/s, M.2 2280, PCIe Gen 4x4 | Compatible w/ PS5, Gamers & Content Creators, PC & Laptops, SLC Cache, Single-Sided Design, LNM790X001T-RN9NU
$188.49
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