SSDs / Compare

Lexar Professional NM1090 PRO vs Lexar NM990

A

Product A: Lexar

Professional NM1090 PRO

33 of 63 known

Change Lexar Professional NM1090 PRO

Compare the Lexar NM990 with

Search SSDs

B

Product B: Lexar

NM990

25 of 63 known

Change Lexar NM990

Compare the Lexar Professional NM1090 PRO with

Search SSDs

All 63 fields

Every value links to where we found it.

Only differences

ALexar Professional NM1090 PRO

BLexar NM990

General

4 of 9 differ

Series

NM10901Maker product pagelexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSDRead 14 October 2026Lexar names the drive Professional NM1090 PRO, a PRO version of the NM1090 line. The older NM1090 is a separate product with a fan heatsink

NM9901Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Maker line name is NM990

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

LNM109P001T-RNNNU, LNM109P001T-RNNNG, LNM109P002T-RNNNU, LNM109P002T-RNNNG, LNM109P004T-RNNNU, LNM109P004T-RNNNG, LNM109P008T-RNNNU2Maker product pageamericas.lexar.com/product/lexar-professional-nm1090-pro-pcie-5-0-nvme-m-2-2280-ssdRead 14 October 2026North America part numbers LNM109P001T-RNNNU, LNM109P002T-RNNNU, LNM109P004T-RNNNU and LNM109P008T-RNNNU. The page shows current MSRPs of $299.99, $599.99 and $999.99, which are not launch prices5Reviewtomshardware.com/pc-components/ssds/lexar-nm1090-pro-4tb-ssd-reviewRead 14 October 2026Spec table lists the North America part numbers LNM109P001T-RNNNU, LNM109P002T-RNNNU and LNM109P004T-RNNNU9Retailer pagecatalog.onliner.by/ssd/lexar/lnm109p002trnnngRead 14 October 2026Global part numbers LNM109P001T-RNNNG, LNM109P002T-RNNNG and LNM109P004T-RNNNG are on the Onliner pages lnm109p001trnnng, lnm109p002trnnng and lnm109p004trnnng. The 8TB is only known as -RNNNU from Lexar's Americas page

LNM990X001T-RNNNG, LNM990X001T-RNNNU, LNM990X002T-RNNNG, LNM990X002T-RNNNU, LNM990X004T-RNNNG, LNM990X004T-RNNNU1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Part number table, region Global: LNM990X001T-RNNNG, LNM990X002T-RNNNG and LNM990X004T-RNNNG. The 2TB number is on this page, not on the retailer listings. The RNNNU North America codes are in the setup sheet2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026Ordering information: Global LNM990X001T-RNNNG, LNM990X002T-RNNNG, LNM990X004T-RNNNG and North America LNM990X001T-RNNNU, LNM990X002T-RNNNU, LNM990X004T-RNNNU

GTIN / EAN

843367136780, 843367136797, 84336713680310Retailer pageshop.eltelnetworks.dk/lexar-professional-nm1090-pro-4/cat-p/c/p1005856476Read 14 October 2026EANs by global part number, 13-digit form with a leading zero, stored as 12-digit UPC. 1TB LNM109P001T-RNNNG 0843367136780 and 4TB LNM109P004T-RNNNG 0843367136803 (eltelnetworks.dk listings), 2TB LNM109P002T-RNNNG 0843367136797 (awd-it.co.uk listing). All pass the UPC check digit. No code found for the -RNNNU versions or the 8TB11Retailer pageawd-it.co.uk/lexar-professional-nm1090-pro-2tb-pcie-5-0-m-2-nvme-ssd-lnm109p002t-rnnng-read-14-000mb-s-write-13-000mb-s.htmlRead 14 October 20262TB LNM109P002T-RNNNG, EAN 843367136797

843367136841, 843367136872, 843367136858, 843367136889, 843367136865, 8433671368962Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026Single UPC column. Global: 843367136841 (1TB), 843367136858 (2TB), 843367136865 (4TB). North America: 843367136872, 843367136889, 843367136896. The 10-pack UPCs are not stored

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

3 March 20253Press releaselexar.com/global/news/Lexar-Announces-Professional-NM1090-PRO-SSDRead 14 October 2026Lexar global announcement dated 3 March 2025

Not available

Status

Available4Press releaseamericas.lexar.com/news/lexar-launches-new-line-of-pcie-4-0-and-pcie-5-0-ssds-designed-to-enhance-gameplay-and-professional-applicationsRead 14 October 2026Still sold in 2026, with the 8TB listed on Lexar's global page

Available1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Listed on the Lexar page and on retailers

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$269.994Press releaseamericas.lexar.com/news/lexar-launches-new-line-of-pcie-4-0-and-pcie-5-0-ssds-designed-to-enhance-gameplay-and-professional-applicationsRead 14 October 2026US launch prices: 1TB $179.99 and 2TB MSRP $269.99, excl. sales tax. No price for the 4TB

Not available

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

Not available

Not available

ColoursiThe maker's own colour names

Not available

Not available

Form factoriPhysical size of the drive. External is any drive in its own case that connects by cable. A drive sold in two M.2 lengths is two products. Xbox expansion card is a card for the storage expansion slot of an Xbox Series console.

M.2 22801Maker product pagelexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSDRead 14 October 2026

M.2 22801Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Form factor row reads M.2 22802Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026

CapacityiNominal capacity before formatting, in decimal GB. A published 1 TB is 1000 GB. A published 1024GB stays 1024. The marketed capacity is stored, not a raw or usable figure from the same table, such as OWC's 2048 GB total and 1920 GB usable for a 2.0TB drive.

1 TB, 2 TB, 4 TB, 8 TB1Maker product pagelexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSDRead 14 October 2026Capacities 1TB, 2TB, 4TB, 8TB. Americas page footnote says 1GB = 1 billion bytes

1 TB, 2 TB, 4 TB1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Capacity row reads 1TB, 2TB, 4TB. Footnote: 1GB equals 1 billion bytes. ComputerBase lists 1,024, 2,048 and 4,096 GB, which Lexar does not publish, so decimal values are stored2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026

Interface

1 of 5 differ

InterfaceiFastest host connection the drive is rated for. The PCIe generation of an NVMe drive is its own field. A Thunderbolt drive that also works over USB uses its Thunderbolt version.

PCIe NVMe1Maker product pagelexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSDRead 14 October 2026PCIe Gen 5x4, M.2 2280

PCIe NVMe1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Interface row reads PCIe Gen5x4. The page gives no NVMe version2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026

PCIe generationiHighest PCIe generation the drive supports, e.g. 5 for PCIe 5.0. NVMe drives only. A drive rated for PCIe 4.0 x4 or 5.0 x2 is 5 with 2 lanes, and the source note names both modes.

51Maker product pagelexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSDRead 14 October 2026

51Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026

PCIe lanesiLanes the drive uses at its highest PCIe generation, usually 4. NVMe drives only.

41Maker product pagelexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSDRead 14 October 2026

41Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026

NVMe versioniVersion of the NVMe specification as published. A revision letter is left out, so 2.0d is stored as 2.0.

2.05Reviewtomshardware.com/pc-components/ssds/lexar-nm1090-pro-4tb-ssd-reviewRead 14 October 2026Spec table reads PCIe 5.0 x4 NVMe 2.08Reviewthessdreview.com/our-reviews/nvme/lexar-professional-nm1090-pro-gen5-2tb-ssd-reviewRead 14 October 2026Review says the drive uses the NVMe 2.0 protocol

Not available

Detachable cableiExternal drives. No means the cable is fixed to the drive.

Not available

Not available

Hardware

6 of 7 differ

ControlleriController maker and model as named by the maker or a review. On an external drive, the controller of the SSD inside, not the USB or Thunderbolt bridge chip. The bridge chip goes in the source note.

Silicon Motion SM25085Reviewtomshardware.com/pc-components/ssds/lexar-nm1090-pro-4tb-ssd-reviewRead 14 October 2026Spec table reads SMI SM2508 for 1TB, 2TB and 4TB. Review dated 2025-09-117Reviewstoragereview.com/review/lexar-professional-nm1090-pro-review-affordable-gen5-performanceRead 14 October 2026Lexar uses a 6nm Silicon Motion SM2508, per the review. Lexar's own pages say only 6nm controller8Reviewthessdreview.com/our-reviews/nvme/lexar-professional-nm1090-pro-gen5-2tb-ssd-reviewRead 14 October 2026Silver SMI SM2508 8-channel controller under the graphene label, with a Foresee buffer memory chip

Maxio MAP1806A4Press articlecomputerbase.de/news/storage/lexar-nm990-diesen-controller-nutzt-die-neue-pcie-5-0-ssd.93511Read 14 October 2026ComputerBase reads the NM990 uses the Maxio MAP1806A 8-channel controller with Micron TLC NAND. The maker does not name the controller5Press articlebenchmark.pl/aktualnosci/lexar-nm990-tanie-dyski-ssd-pcie-5.htmlRead 14 October 2026Reads an 8-channel Maxiotek MAP1806A controller, with a photo credited to Tweakers6Reviewallround-pc.com/artikel/lexar-nm990-ssd-test-pcie-5-fuer-wenig-geldRead 14 October 20262TB review names the Maxiotek MAP1806A, 8 NAND channels, hidden under the sticker

Flash typeiBits stored in each flash cell. TLC stores three and QLC stores four. A maker can use another flash type in some capacities, so it is per variant.

TLC1Maker product pagelexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSDRead 14 October 2026

TLC4Press articlecomputerbase.de/news/storage/lexar-nm990-diesen-controller-nutzt-die-neue-pcie-5-0-ssd.93511Read 14 October 2026Table reads TLC (3D) NAND. The flash maker is read as Micron by ComputerBase and as Longsys by allround-pc, so the flash row is not stored6Reviewallround-pc.com/artikel/lexar-nm990-ssd-test-pcie-5-fuer-wenig-geldRead 14 October 2026Review says the flash runs in TLC mode with an SLC write cache. It says the flash comes from Longsys and Lexar does not name the generation

Flash memoryiFlash maker and generation as named by the maker or a review.

Micron B58R TLC5Reviewtomshardware.com/pc-components/ssds/lexar-nm1090-pro-4tb-ssd-reviewRead 14 October 2026Flash appears to be 232-Layer TLC from Micron per the review. TheSSDReview names it Micron B58R. Lexar does not name the maker8Reviewthessdreview.com/our-reviews/nvme/lexar-professional-nm1090-pro-gen5-2tb-ssd-reviewRead 14 October 2026Memory is branded Longsys but is Micron's 232-layer 3D TLC B58R flash. Two 512GB raw NAND chips sit on each side of the 2TB PCB

Not available

Flash layersiStacked layers of the 3D flash, from the maker or a review.

2321Maker product pagelexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSDRead 14 October 2026232-layer 3D TLC NAND. The flash maker is not named by Lexar

Not available

DRAM cacheiDRAM is a memory chip on the drive. HMB is a drive without DRAM that borrows host memory. None has neither. HMB not stated is a drive without DRAM where no source says whether it borrows host memory. An external drive counts when a source names the cache of the drive inside.

DRAM1Maker product pagelexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSDRead 14 October 2026DRAM-based with SLC dynamic cache5Reviewtomshardware.com/pc-components/ssds/lexar-nm1090-pro-4tb-ssd-reviewRead 14 October 2026Foresee LPDDR4x on the 4TB

None, uses host memory (HMB)3Press releaselexar.com/global/news/Lexar-Launches-the-NM990-PCIe-5-0-SSDRead 14 October 2026Key features read HMB and SLC Dynamic Cache. The release gives no DRAM chip4Press articlecomputerbase.de/news/storage/lexar-nm990-diesen-controller-nutzt-die-neue-pcie-5-0-ssd.93511Read 14 October 2026Table reads no DRAM cache5Press articlebenchmark.pl/aktualnosci/lexar-nm990-tanie-dyski-ssd-pcie-5.htmlRead 14 October 2026Reads the design has no DRAM cache, unlike the NM1090 models6Reviewallround-pc.com/artikel/lexar-nm990-ssd-test-pcie-5-fuer-wenig-geldRead 14 October 2026Review text says DRAM-less with Host Memory Buffer. Its spec box lists 4GB LPDDR4, which disagrees with its own text, ComputerBase, Benchmark.pl and Lexar, and is not used

DRAM cache sizeiSize of the DRAM on the drive. Any DRAM type counts, such as DDR4 or LPDDR4X. Host memory buffer (HMB) is not DRAM on the drive.

2GB1Maker product pagelexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSDRead 14 October 2026Dram Capacity: 1TB 2GB, 2TB 2GB, 4TB 4GB, 8TB 8GB. The text says DRAM and SLC caches. PCWorld says 1GB of DRAM per TB, which would make the 1TB 1GB, so Lexar's figure is stored

Not available

Component sidesiWhether chips sit on one or both sides of the board. Thin laptops and some handhelds need single-sided drives. M.2 drives only. The M.2 module code states it: S is single-sided and D is double-sided, e.g. 2280-S3-M or 2280-D5-M.

Double-sided5Reviewtomshardware.com/pc-components/ssds/lexar-nm1090-pro-4tb-ssd-reviewRead 14 October 2026The review says the NM1090 Pro is not single-sided, and the spec table reads M.2 2280 (Double-sided) for 1TB, 2TB and 4TB. The 8TB is not covered, so its row leaves it out8Reviewthessdreview.com/our-reviews/nvme/lexar-professional-nm1090-pro-gen5-2tb-ssd-reviewRead 14 October 20262TB is a two-sided SSD, with chips on both sides of the PCB

Not available

Performance

3 of 4 differ

Sequential read (claimed)iMaker's up-to sequential read speed for this capacity. Test conditions are in the source note.

14,000MB/s1Maker product pagelexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSDRead 14 October 2026Specifications text, up to values. 1TB 14,000 MB/s read and 10,000 write, 2TB and 4TB 14,000 and 13,000, 8TB 14,400 and 13,400. Speeds are based on internal testing per Lexar's footnote

14,000MB/s1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Speed row, up to 14,000 MB/s read at 1TB, 2TB and 4TB. Based on internal testing, host not named2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026Same speed table as the product page. Setup sheet availability date is June 2025

Sequential write (claimed)iMaker's up-to sequential write speed for this capacity. Makers usually measure it inside the fast write cache.

13,000MB/s1Maker product pagelexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSDRead 14 October 2026

10,000MB/s1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Up to 7,500 MB/s (1TB), 10,000 MB/s (2TB) and 11,000 MB/s (4TB)2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026

Random 4K read (claimed)iMaker's up-to random read speed with 4 KB blocks. Queue depth and threads are in the source note. The maker's headline claim. Makers test at different queue depths, so compare with care. The queue depth 1 measured fields compare better.

2,100,000IOPS1Maker product pagelexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSDRead 14 October 2026Up to values: 1TB 1650K, 2TB 2100K, 4TB 2100K, 8TB 2000K IOPS. Test conditions and queue depth are not stated

2,000,000IOPS1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Up to 1600K (1TB), 2000K (2TB) and 2000K (4TB) IOPS. Queue depth is not stated2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026

Random 4K write (claimed)iMaker's up-to random write speed with 4 KB blocks. Queue depth and threads are in the source note. The maker's headline claim. Makers test at different queue depths, so compare with care. The queue depth 1 measured fields compare better.

1,800,000IOPS1Maker product pagelexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSDRead 14 October 2026Up to values: 1TB 1800K, 2TB 1800K, 4TB 1700K, 8TB 2100K IOPS

1,400,000IOPS1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Up to 1000K (1TB), 1400K (2TB) and 1500K (4TB) IOPS2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026

Endurance and reliability

1 of 3 differ

Endurance (TBW)iTerabytes that can be written within the warranty, as the maker rates them.

1,400TB1Maker product pagelexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSDRead 14 October 20261TB 700, 2TB 1400, 4TB 2800, 8TB 5600 TBW2Maker product pageamericas.lexar.com/product/lexar-professional-nm1090-pro-pcie-5-0-nvme-m-2-2280-ssdRead 14 October 20268TB 5600, 4TB 2800, 2TB 1400, 1TB 700 TBW

1,500TB1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026TBW row: 1TB 750TBW, 2TB 1500TBW, 4TB 3000TBW2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 20263Press releaselexar.com/global/news/Lexar-Launches-the-NM990-PCIe-5-0-SSDRead 14 October 2026Rated capacity of up to 3000 TBW (4TB)

MTBF or MTTF (claimed)iMean time between failures, or mean time to failure when the maker publishes MTTF. The source note says which. Some makers state it per capacity, so it is per variant.

1,500,000h1Maker product pagelexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSDRead 14 October 2026MTBF 1,500,000 hours

1,500,000h1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026MTBF row reads 1,500,000 hours. Published as MTBF2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026

Operating temperatureiMaker's operating range. The storage range is not stored.

Min0Max70°C1Maker product pagelexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSDRead 14 October 20260 to 70 C. Storage range -40 to 85 C is not stored

Min0Max70°C1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 20260 to 70 C. The storage range of -40 to 85 C is not stored2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026

Power

None of 6 known

Power while reading (claimed)iMaker's average power during sequential reads, including a figure given at the full read speed. A single average or active figure with no read and write split, such as Corsair's, is stored in both read and write, and the source note says so. A maximum figure, such as Kingston's (MAX) Read, is a peak and is not stored.

Not available

Not available

Power while writing (claimed)iMaker's average power during sequential writes. A single average or active figure with no read and write split is stored in both read and write, and the source note says so. A maximum figure, such as Kingston's (MAX) Write, is a peak and is not stored.

Not available

Not available

Max power consumption (claimed)iMaker's peak or maximum power figure. Not the average while reading or writing. Kingston publishes max read and max write power apart. Store the higher one and name both in the source note.

Not available

Not available

Average power in light use (claimed)iMaker's average over a mixed client workload such as MobileMark. Not idle power and not read or write power.

Not available

Not available

Idle power (claimed)iMaker's idle power in the PS3 state with APST on, or the state the maker calls low-power idle. On a SATA drive, Slumber counts as low-power idle. A plain idle figure with no low-power state, often near 1 W, is active idle and is not stored. Samsung's Idle with DIPM on is a SATA link power state, so it counts as low-power idle.

Not available

Not available

Sleep power (claimed)iMaker's power in the deepest sleep state, PS4 or L1.2. On a SATA drive this is DevSleep.

Not available

Not available

Measured

1 of 9 differ

Sequential read (measured)iCrystalDiskMark SEQ1M Q8T1 read result from a reviewer. Host and slot are in the source note. KitGuru's default profile counts as SEQ1M Q8T1.

Not available

Not available

Sequential write (measured)iCrystalDiskMark SEQ1M Q8T1 write result from a reviewer. Host and slot are in the source note.

Not available

Not available

Random 4K read at queue depth 1 (measured)iCrystalDiskMark RND4K Q1T1 read result from a reviewer. Small reads one at a time, close to everyday use. KitGuru's 4K QD1 1 Thread test counts as RND4K Q1T1. A CrystalDiskMark result printed in IOPS is stored as IOPS x 4096 / 1,000,000 MB/s, the way CrystalDiskMark converts.

Not available

Not available

Random 4K write at queue depth 1 (measured)iCrystalDiskMark RND4K Q1T1 write result from a reviewer. A CrystalDiskMark result printed in IOPS is stored as IOPS x 4096 / 1,000,000 MB/s, the way CrystalDiskMark converts.

Not available

Not available

Write cache size (measured)iData written at full speed in one long sequential write on an empty drive before the speed drops.

Not available

Not available

Write speed after the cache (measured)iWrite speed in the first state after the fast cache is full, when the drive writes straight to TLC or QLC. Tom's Hardware calls it TLC mode. The slower folding state and the lowest dip are not stored. Only from a long sequential write test.

Not available

Not available

3DMark Storage BenchmarkiOverall score measured by a reviewer. Host and slot are in the source note. From StorageReview only. Tom's Hardware scores the same drive about 30 percent higher, so other reviewers are not mixed in.

4,828points7Reviewstoragereview.com/review/lexar-professional-nm1090-pro-review-affordable-gen5-performanceRead 14 October 20262TB, score 4,828 in the 3DMark Storage benchmark. Test rig AMD Ryzen 7 9800X3D, Asus ROG Crosshair X870E Hero, Windows 11 Pro, RTX 4090. Review dated 2025-06-04. The review's spec table shows different speeds for some capacities than Lexar's current pages, and Lexar's pages are used

Not available

Highest temperature under load (measured)iHighest drive sensor reading in a sustained write test of 10 minutes or more, on the bare drive unless the row is a heatsink version. Short benchmark runs do not count. Heatsink, airflow and room temperature go in the source note.

Not available

Not available

Idle power (measured)iReviewer's idle reading. Power-saving settings such as ASPM are in the source note. A value read from a chart image counts when the source note says "read from chart".

Not available

Not available

Cooling and build

0 of 4 differ

HeatsinkiVersions sold. The base lists every version and each variant row lists its own. A water block or a cooler with a fan counts as a heatsink. A thermal pad or label alone is bare. A heatsink in the box that the buyer fits, as on the XPG MARS 980 BLADE, counts as with heatsink.

Without heatsink1Maker product pagelexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSDRead 14 October 2026No heatsink version is listed on Lexar's pages. The drive has a graphene label and a 6nm controller for heat control. A PCWorld line that mentions a version with a heavier heatsink is not backed by a Lexar listing

Without heatsink1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026The page lists no heatsink version6Reviewallround-pc.com/artikel/lexar-nm990-ssd-test-pcie-5-fuer-wenig-geldRead 14 October 2026All models ship without a heatsink. The review's spec box lists 3.6 mm thickness, which disagrees with Lexar's 2.45 mm, and is not used

RGB lightingiAny version sold has lighting the user can set. A status LED alone does not count. Leave it out when no version has lighting. The Heatsink rows show which version has it.

Not available

Not available

Dust and water ratingiPublished IP rating of an external drive.

Not available

Not available

Drop test heightiMaker-published tested height. Surface and conditions are in the source note.

Not available

Not available

Security and software

0 of 2 differ

SecurityiFeatures the maker names for the drive. Encryption done by host software does not count. ATA Security passthrough counts as password protection.

Not available

Not available

Software

Lexar DiskMaster2Maker product pageamericas.lexar.com/product/lexar-professional-nm1090-pro-pcie-5-0-nvme-m-2-2280-ssdRead 14 October 2026Lexar DiskMaster SSD Management tool, for firmware updates, drive health and secure erase5Reviewtomshardware.com/pc-components/ssds/lexar-nm1090-pro-4tb-ssd-reviewRead 14 October 2026Review names Lexar DiskMaster and Lexar DataShield as downloads

Lexar DiskMaster2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026Lexar DiskMaster SSD Management tool for firmware updates, drive management and health monitoring3Press releaselexar.com/global/news/Lexar-Launches-the-NM990-PCIe-5-0-SSDRead 14 October 2026Lexar DiskMaster SSD Management tool

Compatibility

None of 1 known

PlatformsiPlatforms the maker names for this drive. A PS5 needs a heatsink on an internal drive. PC is for a maker that writes Client PCs or PC without naming an operating system. Handheld PCs go in Other with a source note.

Not available

Not available

Dimensions and weight

2 of 2 differ

DimensionsiLength is the long side. Height is the thickness, including a fitted heatsink. As the maker publishes it. A maximum counts. Length is the long side even when the maker lists the width first.

Length80Width22Height3.8mm(3.1 × 0.9 × 0.1 in)2Maker product pageamericas.lexar.com/product/lexar-professional-nm1090-pro-pcie-5-0-nvme-m-2-2280-ssdRead 14 October 2026Dimensions (L x W x H) 80 x 22 x 3.8 mm for the line. Lexar's global page gives 3.6 mm for 1TB and 2TB and 3.9 mm for 4TB and 8TB. The 3.8 mm value matches the B&H and Onliner listings and the double-sided module height, so it is stored

Length80Width22Height2.45mm(3.1 × 0.9 × 0.1 in)1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Dimension row reads 80 x 22 x 2.45 mm (3.15 x 0.87 x 0.10 in). The row label says W x L x H, the values are length 80 and width 222Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 202680 x 22 x 2.45 mm (L x W x H)

WeightiDrive alone, with a heatsink when it is sold fitted. No cable and no packaging. As the maker publishes it. A maximum counts. Not a measured weight.

8g(0.3 oz)1Maker product pagelexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSDRead 14 October 20261TB-2TB 8 g, 4TB 8.5 g, 8TB 9.6 g

6g(0.2 oz)1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 20266 g / 0.013 lbs2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026Unit weight 6 g

In the box

None of 2 known

In the box

Not available

Not available

Cables includediCables supplied with an external drive.

Not available

Not available

Links

Not compared

Product page

www.lexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSD1Maker product pagelexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSDRead 14 October 2026

www.lexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSD1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Lexar Global product page

Spec sheet

Not available

Not available

Manual

Not available

Not available

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

0 of 1 differ

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

5years1Maker product pagelexar.com/global/products/Lexar-Professional-NM1090-PRO-PCIe-5-0-NVMe-M-2-2280-SSDRead 14 October 2026Five-year limited warranty2Maker product pageamericas.lexar.com/product/lexar-professional-nm1090-pro-pcie-5-0-nvme-m-2-2280-ssdRead 14 October 2026Five-year limited warranty

5years1Maker product pagelexar.com/global/products/Lexar-NM990-M-2-2280-PCIe-5-0-NVMe-SSDRead 14 October 2026Five-year limited warranty2Maker spec sheet (PDF)resources.lexar.com/download/2254/document/14461/setupsheet-nm990-pcie-5-0-ssd.pdfRead 14 October 2026Five-year limited warranty

Both are also in the API. Back to all SSDs.