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Lexar Professional NM1090 PRO vs Samsung 990 EVO Plus

A

Product A: Lexar

Professional NM1090 PRO

33 of 63 known

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B

Product B: Samsung

990 EVO Plus

48 of 63 known

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Every value links to where we found it.

Only differences

ALexar Professional NM1090 PRO

BSamsung 990 EVO Plus

General

6 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

Not available

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

MZ-V9S1T0BW, MZ-V9S1T0B/AM, MZ-V9S2T0BW, MZ-V9S2T0B/AM, MZ-V9S4T0BW, MZ-V9S4T0B/AM1Maker spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026Product lineup table: MZ-V9S1T0BW and MZ-V9S1T0B/AM (1TB), MZ-V9S2T0BW and MZ-V9S2T0B/AM (2TB), MZ-V9S4T0BW and MZ-V9S4T0B/AM (4TB)

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

8806095575674, 8806095575650, 887276843674, 88727684366713Spec databasebuildcores.com/products/Storage/66os9znk9/Samsung-990-EVO-Plus-2TB-SSD-M.2-PCIe-5.0-X2-NVMeRead 14 October 20262TB: UPC 887276843674 for MZ-V9S2T0B/AM and EAN 8806095575650 for MZ-V9S2T0BW14Retailer pagefr.alternate.be/Samsung/990-EVO-PLUS-2-To-SSD/html/product/100080170Read 14 October 20262TB, model MZ-V9S2T0BW, EAN 880609557565015Retailer pageawd-it.co.uk/samsung-990-evo-plus-1tb-pcie-4-0-5-0-hybrid-nvme-ssd-m-2-2280-mz-v9s1t0bw-read-7150mb-s-write-6300mb-s.htmlRead 14 October 20261TB, model MZ-V9S1T0BW, EAN 8806095575674. No UPC found for the 1TB16Retailer pageabt.com/Samsung-990-EVO-Plus-Gen4-NVMe-SSD-4TB-MZV9S4T0BAM/p/215234.htmlRead 14 October 20264TB, model MZ-V9S4T0B/AM, UPC 887276843667. No EAN found for the 4TB bare model number

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

25 September 20245Press releasenews.samsung.com/global/samsung-launches-990-evo-plus-ssd-with-best-in-class-performance-speeds-supported-by-pcie-4-0Read 14 October 2026Samsung global newsroom, Korea, September 25, 2024. Samsung Germany's release is dated 26.09.2024

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

Available4Maker product pagesamsung.com/us/memory-storage/nvme-ssd/990-evo-plus-gen4-nvme-ssd-2tb-sku-mz-v9s2t0b-amRead 14 October 2026Samsung US page offers 1TB, 2TB and 4TB. The 1TB and 2TB showed out of stock and the 4TB was orderable. Tom's Hardware lists Best Buy offers for the 1TB and 2TB. The page shows current prices, which are not used

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

$184.995Press releasenews.samsung.com/global/samsung-launches-990-evo-plus-ssd-with-best-in-class-performance-speeds-supported-by-pcie-4-0Read 14 October 2026MSRP worldwide in USD: 1TB $109.99, 2TB $184.99, 4TB $344.99. Excl. sales tax6Press releasenews.samsung.com/us/samsung-launches-990-evo-plus-ssd-with-improved-performance-speeds-supported-by-pcie-4-0Read 14 October 2026US MSRP 1TB $109.99, 2TB $184.99, 4TB $344.99

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

€210.997Press releasenews.samsung.com/de/samsung-launcht-nvme-990-evo-plusRead 14 October 2026Samsung Germany, 26.09.2024, unverbindliche Preisempfehlung incl. VAT: 1TB 125.99, 2TB 210.99, 4TB 391.99. Other Samsung EU newsrooms list different euro prices: Belgium (French) 129.99, 219.99 and 409.99, Italy 159.99, 269.99 and 479.99. The German prices are stored

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

Black3Maker product pagesamsung.com/uk/memory-storage/nvme-ssd/990-evo-plus-2tb-nvme-pcie-gen-4-mz-v9s2t0bwRead 14 October 2026Product heading reads Black 2TB. The Specifications tab has no colour row. The page showed the drive as out of stock

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 spec sheet (PDF)farnell.com/datasheets/4411543.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 spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026

Interface

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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 spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026Interface row reads PCIe 4.0 x4 / 5.0 x2 NVMe 2.0

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 spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026Drive runs at PCIe 4.0 x4 or PCIe 5.0 x2. Stored as 5 with 2 lanes by the field rule. Footnote 2 says it is backward compatible with PCIe 4.0 x4 and 3.0 x4

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

21Maker spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 20262 lanes at PCIe 5.0. At PCIe 4.0 the drive uses 4 lanes

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

2.01Maker spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026Interface row reads NVMe 2.0

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

Samsung Piccolo8Reviewtomshardware.com/pc-components/ssds/samsung-990-evo-plus-ssd-reviewRead 14 October 2026Specs table lists Samsung Piccolo for 1TB, 2TB and 4TB. Maker says only Samsung in-house controller. Review notes a 5 nm controller, four channels10Reviewkitguru.net/components/ssd-drives/simon-crisp/samsung-ssd-990-evo-plus-2tb-ssd-reviewRead 14 October 2026Names the in-house Samsung Piccolo controller, a four-channel DRAM-less 5 nm design with HMB

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

TLC1Maker spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026NAND Flash Memory row reads Samsung V-NAND TLC

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

Samsung V-NAND V8 TLC8Reviewtomshardware.com/pc-components/ssds/samsung-990-evo-plus-ssd-reviewRead 14 October 2026Specs table reads Samsung 236-Layer (V8) TLC. Maker's own tables read Samsung V-NAND TLC. Press release says 8th generation V-NAND

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

2368Reviewtomshardware.com/pc-components/ssds/samsung-990-evo-plus-ssd-reviewRead 14 October 2026236 layers, V8 flash, same flash on all three capacities10Reviewkitguru.net/components/ssd-drives/simon-crisp/samsung-ssd-990-evo-plus-2tb-ssd-reviewRead 14 October 2026Samsung's 8th generation 236-layer V-NAND TLC, a single NAND package on the 2TB

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)1Maker spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026Cache Memory row reads HMB (Host Memory Buffer)8Reviewtomshardware.com/pc-components/ssds/samsung-990-evo-plus-ssd-reviewRead 14 October 2026Specs table lists DRAM as N/A (HMB)

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

Single-sided8Reviewtomshardware.com/pc-components/ssds/samsung-990-evo-plus-ssd-reviewRead 14 October 2026Specs table lists M.2 2280 (SS) for all three capacities. The 2TB uses one NAND package, and the 4TB is also single-sided10Reviewkitguru.net/components/ssd-drives/simon-crisp/samsung-ssd-990-evo-plus-2tb-ssd-reviewRead 14 October 2026Reviewer says the 2TB is built on a single-sided M.2 2280 format

Performance

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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

7,250MB/s1Maker spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026Up to values 7,150 (1TB), 7,250 (2TB), 7,250 (4TB) MB/s. IOmeter 1.1.0 on AMD Ryzen 9 7950X, ASRock X670E Taichi, DDR5-4800 2x16GB, Windows 11 Pro 64-bit, PCIe 4.0 x4 / 5.0 x2, as a secondary drive in a fan-cooled desktop

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

6,300MB/s1Maker spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 20266,300 MB/s on all capacities. Measured with Intelligent TurboWrite active, so inside the fast write cache

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

1,000,000IOPS1Maker spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026Published as KIOPS: 850K (1TB), 1,000K (2TB), 1,050K (4TB). The datasheet gives no queue depth. The Samsung brochure header reads QD32. Same test system as sequential2Maker spec sheet (PDF)download.semiconductor.samsung.com/resources/brochure/Samsung_990_EVO_Plus_Brochure.pdfRead 14 October 2026Table header reads Random Read (IOPS, QD32), 850K, 1,000K, 1,050K

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

1,350,000IOPS1Maker spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 20261,350K (1TB), 1,350K (2TB), 1,400K (4TB). Same test as random read2Maker spec sheet (PDF)download.semiconductor.samsung.com/resources/brochure/Samsung_990_EVO_Plus_Brochure.pdfRead 14 October 2026Table header reads Random Write (IOPS, QD32), 1,350K, 1,350K, 1,400K

Endurance and reliability

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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

1,200TB1Maker spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026600 TB (1TB), 1,200 TB (2TB), 2,400 TB (4TB). Warranty covers 5 years or the TBW, whichever comes first

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 spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026Published as MTBF, 1.5 million hours

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 spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 20260 to 70 C, measured by S.M.A.R.T. temperature, proper airflow recommended. Non-operating range of -40 to 85 C is not stored

Power

4 of 6 differ

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

4.6W1Maker spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026Active average, IOmeter 1.1.0 on AMD Ryzen 5 7600, ASUS ProArt X670E-Creator WiFi, Windows 10 Pro, PCIe 4.0 x4 / 5.0 x2. 4.3 W (1TB), 4.6 W (2TB), 5.5 W (4TB)

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

4.2W1Maker spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 20264.2 W (1TB), 4.2 W (2TB), 4.8 W (4TB), same test as read

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

60mW1Maker spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026Idle typical, PS3 with APST on, 60 mW on all capacities

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

Not available

5mW1Maker spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026Idle typical, PS4 (L1.2), 5 mW on all capacities

Measured

9 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

7,297MB/s11Reviewkitguru.net/components/ssd-drives/simon-crisp/samsung-ssd-990-evo-plus-2tb-ssd-review/4Read 14 October 20262TB, CrystalDiskMark 8.0.4 default profile, SEQ1M Q8T1 read 7,296.69 MB/s, rounded to 7297 (the text says 7,296). 1 GiB test file, 5 runs, drive wiped with HDDerase v4. Test bench AMD Ryzen 5 3600X, 16GB DDR4-2400, Gigabyte B550 Aorus Master, PCIe 4.0 x4 slot

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

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5,827MB/s11Reviewkitguru.net/components/ssd-drives/simon-crisp/samsung-ssd-990-evo-plus-2tb-ssd-review/4Read 14 October 2026SEQ1M Q8T1 write 5,827.03 MB/s, same test. Text says 5,827

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.

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84.84MB/s11Reviewkitguru.net/components/ssd-drives/simon-crisp/samsung-ssd-990-evo-plus-2tb-ssd-review/4Read 14 October 2026RND4K Q1T1 read 84.84 MB/s from the default profile screenshot, same value as the 4K QD1 Threads 1 chart

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.

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225.42MB/s11Reviewkitguru.net/components/ssd-drives/simon-crisp/samsung-ssd-990-evo-plus-2tb-ssd-review/4Read 14 October 2026RND4K Q1T1 write 225.42 MB/s, same test

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

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226GB9Reviewtomshardware.com/pc-components/ssds/samsung-990-evo-plus-ssd-review/2Read 14 October 20262TB. Iometer sustained sequential write, 1 MiB blocks, QD32, 15 minutes. The review says the drive wrote at almost 6.1 GB/s for over 37 seconds and calls the total cache 226 GB: 216 GB of dynamic cache plus 10 GB of static cache, more or less exactly what the test found. The sequential write chart drops at about 39 seconds

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.

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1,500MB/s9Reviewtomshardware.com/pc-components/ssds/samsung-990-evo-plus-ssd-review/2Read 14 October 20262TB. Review text: TLC write speeds around 1.5 GB/s after the cache is depleted, stored as 1500. The chart shows 1,400 to 1,500 MB/s right after the drop. The steady state average over 15 minutes is 1,777 MB/s and is not stored

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

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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.

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65°C9Reviewtomshardware.com/pc-components/ssds/samsung-990-evo-plus-ssd-review/2Read 14 October 20262TB, bare drive, no heatsink. Maximum recorded temperature of 65 C on the primary composite sensor, about 22 C ambient, Intel Core i9-12900K on Asus ROG Maximus Z790 Hero. The review says the drive should not need a heatsink. KitGuru logged 49 C in short benchmark runs, which is a different method

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".

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1,086mW9Reviewtomshardware.com/pc-components/ssds/samsung-990-evo-plus-ssd-review/2Read 14 October 20262TB, read from chart. Quarch PPM idle power with ASPM and LPM disabled, 1,086 mW

Cooling and build

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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 heatsink10Reviewkitguru.net/components/ssd-drives/simon-crisp/samsung-ssd-990-evo-plus-2tb-ssd-reviewRead 14 October 2026The drive has no heatsink as such, only a heat spreader label with a copper layer and a nickel-coated controller. Samsung sells it in one bare version

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.

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Dust and water ratingiPublished IP rating of an external drive.

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

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Security and software

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

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AES 256-bit hardware encryption, TCG Opal 2.0, IEEE 1667 (eDrive)1Maker spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026Data Security row reads AES 256-bit Full Disk Encryption, TCG/Opal V2.0, Encrypted Drive (IEEE1667)

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

Samsung Magician2Maker spec sheet (PDF)download.semiconductor.samsung.com/resources/brochure/Samsung_990_EVO_Plus_Brochure.pdfRead 14 October 2026Software row, Management Software: Samsung Magician software3Maker product pagesamsung.com/uk/memory-storage/nvme-ssd/990-evo-plus-2tb-nvme-pcie-gen-4-mz-v9s2t0bwRead 14 October 2026Software row, Management SW: Magician Software for SSD management

Compatibility

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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.

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PC (no OS named)1Maker spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026Usage Application row reads Client PCs, stored as PC. No console is named

Dimensions and weight

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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

Length80.15Width22.15Height2.38mm(3.2 × 0.9 × 0.1 in)1Maker spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026Maximum size, Max 80.15 x Max 22.15 x Max 2.38 mm on all capacities. Same on the brochure and the Samsung UK page

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

9g(0.3 oz)2Maker spec sheet (PDF)download.semiconductor.samsung.com/resources/brochure/Samsung_990_EVO_Plus_Brochure.pdfRead 14 October 2026General Feature table, Weight Max 9.0 g, published as a maximum for all capacities3Maker product pagesamsung.com/uk/memory-storage/nvme-ssd/990-evo-plus-2tb-nvme-pcie-gen-4-mz-v9s2t0bwRead 14 October 2026Specifications tab, Max 9.0 g

In the box

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In the box

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Samsung SSD 990 EVO Plus 1TB, Samsung SSD 990 EVO Plus 2TB, Samsung SSD 990 EVO Plus 4TB, Warranty Statement1Maker spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026Product lineup table, box contents are the drive and a warranty statement

Cables includediCables supplied with an external drive.

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Links

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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.samsung.com/us/memory-storage/nvme-ssd/990-evo-plus-gen4-nvme-ssd-2tb-sku-mz-v9s2t0b-am4Maker product pagesamsung.com/us/memory-storage/nvme-ssd/990-evo-plus-gen4-nvme-ssd-2tb-sku-mz-v9s2t0b-amRead 14 October 2026

Spec sheet

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www.farnell.com/datasheets/4411543.pdf1Maker spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026Samsung V-NAND SSD 990 EVO Plus Data Sheet, Revision 1.0 (October 2024), a copy hosted by the distributor Farnell. Samsung's own download site returned 404 for the data sheet file names tried

Manual

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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.

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Warranty

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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 spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 20265 years limited, or the TBW, whichever comes first3Maker product pagesamsung.com/uk/memory-storage/nvme-ssd/990-evo-plus-2tb-nvme-pcie-gen-4-mz-v9s2t0bwRead 14 October 20265-year Limited Warranty or 1200 TBW Limited Warranty, UK page

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