SSDs / Compare

Samsung 990 EVO Plus vs Western Digital WD Green SN3000

A

Product A: Samsung

990 EVO Plus

48 of 63 known

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B

Product B: Western Digital

WD Green SN3000

27 of 63 known

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All 63 fields

Every value links to where we found it.

Only differences

ASamsung 990 EVO Plus

BWestern Digital WD Green SN3000

General

6 of 9 differ

Series

Not available

WD Green1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Data sheet title reads WD Green SN3000 NVMe SSD

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

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)

WDS500G4G0E, WDS500G4G0E-00CPS0, WDS500G5G0E-00VNF0, WDS100T4G0E, WDS100T4G0E-00CPS0, WDS200T4G0E, WDS200T4G0E-00CPS01Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Specifications table: WDS500G4G0E (500GB), WDS100T4G0E (1TB), WDS200T4G0E (2TB). The suffixed numbers are on the Sandisk product page and retailer listings2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026The page lists WDS500G5G0E-00VNF0 (500GB), WDS100T4G0E-00CPS0 (1TB) and WDS200T4G0E-00CPS0 (2TB). The 500GB WDS500G4G0E-00CPS0 is listed by retailers, for example SHI UK8Retailer pageuk.shi.com/product/49459475/WD-Green-SN3000-WDS500G4G0E-00CPS0Read 14 October 2026SHI UK lists the 500GB as WDS500G4G0E-00CPS0

GTIN / EAN

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

718037907154, 718037904603, 57153282617927Spec databasebuildcores.com/products/Storage/wbab0r8hy/Western-Digital-WD-Green-SN3000-1TB-SSD-M.2-2280-PCIe-4.0-x4-NVMeRead 14 October 20261TB, WDS100T4G0E-00CPS0. UPC 718037907154 and 718037904603, EAN 5715328261792. No GTINs were found for the 500GB and 2TB

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

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

Not available

Status

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

Available5Reviewtomshardware.com/reviews/best-ssds,3891.htmlRead 14 October 2026Tom's Hardware Best SSDs guide (updated October 2026) ranks the WD Green SN3000 14th as the best ultra-bargain M.2 SSD and links current Amazon, Walmart and Best Buy offers

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.

$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

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.

€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

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

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

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

M.2 22801Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Specifications table: Form Factor M.2 2280 S3-M2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026Form Factor M.2 2280

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 TB1Maker spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026

500 GB, 1 TB, 2 TB1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Specifications table lists 500GB, 1TB and 2TB. The footnote says 1GB equals one billion bytes. Tom's Hardware also lists 250GB in a guide, but no 250GB model was found on the maker's pages

Interface

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

PCIe NVMe1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Specifications table: Interface PCIe Gen4 x4 NVMe

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 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

41Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Interface row reads PCIe Gen4 x4 NVMe. The Sandisk page says the drive also works in Gen4 x2 and Gen3 slots

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

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

41Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Interface row reads PCIe Gen4 x4 NVMe

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

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

Not available

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

Not available

Not available

Hardware

4 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.

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

Sandisk Polaris 36Reviewchimolog.co/wd-sn3000Read 14 October 2026Japanese review of a purchased 2TB (WDS200T4G0E). Teardown reads the controller as SanDisk Polaris 3, marking A101-000101-A1. Tom's Hardware calls it a Sandisk proprietary controller. The Polaris 3 name matches the catalog's Sandisk Optimus 5100

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

QLC1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Specifications table: NAND type Western Digital QLC 3D NAND. Reviewers disagree on the flash maker and generation, so those are left out. Chimolog read the chip of a 2TB sample as Kioxia BiCS6 162-layer QLC. Tom's Hardware lists Sandisk 218-layer BiCS8 QLC, which it says it is fairly confident about from its results

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

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

Not available

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

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

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.

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)

None, uses host memory (HMB)3Reviewtomshardware.com/pc-components/ssds/wd-green-sn3000-1tb-ssd-reviewRead 14 October 2026Specs table lists DRAM as N/A (HMB) for all three capacities. The Chimolog teardown agrees: no DRAM chip and a host memory buffer of up to 64 MB6Reviewchimolog.co/wd-sn3000Read 14 October 2026Review says no DRAM and a host memory buffer (HMB) of up to 64 MB plus SRAM inside the controller

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.

Not available

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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.

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

Single-sided1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Highlights: the drive uses a single-sided M.2 2280. The form factor code S3-M also means single-sided2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026Page text reads single-sided M.2 2280 to be compatible with thin laptops and small PCs3Reviewtomshardware.com/pc-components/ssds/wd-green-sn3000-1tb-ssd-reviewRead 14 October 2026Review text: a single-sided drive with an SSD controller, a power management chip and a single NAND flash package

Performance

4 of 4 differ

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

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

5,000MB/s1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Sequential Read 5,000 MB/s on all capacities, queue depth 8, threads 1. Based on read speed. Maker's internal testing, host not named2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026Specifications: Sequential Read Performance 5000MB/s for all three capacities

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

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

4,200MB/s1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Sequential Write 4,100 MB/s (500GB), 4,200 MB/s (1TB) and 4,200 MB/s (2TB), queue depth 8, threads 12Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026Sequential Write Performance 4100MB/s (500GB), 4200MB/s (1TB and 2TB)

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.

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

Not available

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.

1,350,000IOPS1Maker 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

Not available

Endurance and reliability

3 of 3 differ

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

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

250TB1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Endurance 100 (500GB), 150 (1TB), 250 (2TB) TBW, calculated with the JEDEC client workload JESD219. Warranty ends at 3 years or the TBW, whichever is first2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026Endurance (TBW) 100 (500GB), 150 (1TB) and 250 (2TB), written 150 units and 250 units on the page

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

1,750,000h1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Published as MTTF, 1.75M hours, from internal Telcordia SR-332 stress testing. Chimolog's table lists 1 million hours, the maker figure is used

Operating temperatureiMaker's operating range. The storage range 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

Min0Max80°C1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Operating temperature 0 C to 80 C, as reported by the drive. The non-operating range of -40 C to 85 C is not stored2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026Operating Temperature 0 C to 80 C

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.

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)

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.

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

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.

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

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

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

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Measured

8 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.

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

Not available

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

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

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.

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

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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.

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

Not available

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

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

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.

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

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.

Not available

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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.

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

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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".

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

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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 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

Without heatsink2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026Only the bare drive is listed. In The Box holds the drive alone and the photos show a plain label

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.

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)

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Software

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

SanDisk Dashboard3Reviewtomshardware.com/pc-components/ssds/wd-green-sn3000-1tb-ssd-reviewRead 14 October 2026Review text: Sandisk offers the SanDisk Dashboard and Acronis True Image for Sandisk. The maker's page names only Acronis True Image for Sandisk, a data migration tool

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.

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

PC (no OS named), Other2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026Compatibility row reads M.2 NVMe PCs, laptops, and handhelds with PCIe Gen 4 x4, PCIe Gen4 x2, PCIe Gen3 x4, PCIe Gen3 x2. No operating system is named, so PC is stored, and handhelds go in other

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.

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

Length80Width22Height2.38mm(3.1 × 0.9 × 0.1 in)1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Physical dimensions: length max 80 mm, width max 22 mm, height max 2.38 mm. Length and width vary by 0.10 mm2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026The page lists 3.15 x 0.87 x 0.09 inches, the data sheet gives the exact millimetre maxima

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.

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

5.4g(0.2 oz)1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Weight max 5.4 g, may vary by 10 percent. The Sandisk page also says 5.4 gms2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026Weight 5.4gms

In the box

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In the box

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

WD Green SN3000 NVMe™ SSD2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026In The Box reads WD Green SN3000 NVMe SSD

Cables includediCables supplied with an external drive.

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Links

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Product page

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

www.sandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssd2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 2026Sandisk product page, with the sku parameter of the 1TB. The page lists the 500GB, 1TB and 2TB. The page template also holds a line saying a product is no longer available on Sandisk.com, which could not be matched to a SKU

Spec sheet

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

www.regard.ru/api/site/files/goodspdf/download/121411Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Sandisk and Western Digital data sheet for the WD Green SN3000 NVMe SSD, dated September 2024. This is a copy hosted by the Russian retailer Regard. The Sandisk site did not link a data sheet file that could be fetched

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 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

3years1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/12141Read 14 October 2026Limited warranty 3 years or the TBW limit, whichever occurs first. The warranty is by region, see support.wdc.com2Maker product pagesandisk.com/products/ssd/internal-ssd/wd-green-sn3000-nvme-ssdRead 14 October 20263-Year Limited Warranty

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