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Samsung 990 EVO Plus vs Sandisk Optimus GX PRO 850P

A

Product A: Samsung

990 EVO Plus

48 of 63 known

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B

Product B: Sandisk

Optimus GX PRO 850P

42 of 63 known

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Every value links to where we found it.

Only differences

ASamsung 990 EVO Plus

BSandisk Optimus GX PRO 850P

General

6 of 9 differ

Series

Not available

Optimus GX PRO2Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-850p-ps5-nvme-ssdRead 23 October 2026Maker line name is SANDISK Optimus GX PRO

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)

SDSG81100TAH-000E0, SDSG81100TAH, SDSG81200TAH-000E0, SDSG81200TAH, SDSG81400TAH-000E0, SDSG81400TAH, SDSG81800TAH-000E0, SDSG81800TAH, WDBBYV0010BNC-WRSN, WDBBYV0020BNC-WRSN, WDBBYV0040BNC-WRSN1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026Model numbers SDSG81100TAH, SDSG81200TAH, SDSG81400TAH and SDSG81800TAH. The product page adds the -000E0 suffix. The WD_BLACK SN850P numbers are from the Western Digital data sheet2Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-850p-ps5-nvme-ssdRead 23 October 2026SKUs SDSG81100TAH-000E0, SDSG81200TAH-000E0, SDSG81400TAH-000E0 and SDSG81800TAH-000E03Maker spec sheet (PDF)cdn.thefpsreview.com/wp-content/uploads/2023/06/WD_BLACK-SN850P-Datasheet.pdfRead 23 October 2026WD_BLACK SN850P NVMe SSD for PS5 consoles data sheet (June 2023, copy hosted by The FPS Review): 1TB WDBBYV0010BNC-WRSN, 2TB WDBBYV0020BNC-WRSN, 4TB WDBBYV0040BNC-WRSN. Same speeds, TBW and 5-year warranty as the Sandisk data sheet. The 8TB model of that line is not in this data sheet and its number is not stored

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

619659232054, 619659232047, 619659232030, 6196592320232Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-850p-ps5-nvme-ssdRead 23 October 2026UPC in the page data: 619659232054 (1TB), 619659232047 (2TB), 619659232030 (4TB), 619659232023 (8TB)

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

7 June 20234Press articlethefpsreview.com/2023/06/08/western-digital-launches-wd_black-sn850p-nvme-ssd-for-ps5-consoles-including-4-tb-version-for-549-99Read 23 October 2026The FPS Review, 8 June 2023: Western Digital launches the WD_BLACK SN850P, available through its web store and participating retailers, 4TB at $549.99. TechRadar and ComputerBase published on 7 June 2023, which is stored

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

Available2Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-850p-ps5-nvme-ssdRead 23 October 2026Product page lists four capacities. The page prices are current store prices and 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.

$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

$249.995Press articletechradar.com/news/wd-blacks-latest-ssd-for-ps5-is-here-and-its-not-cheapRead 23 October 2026TechRadar, 7 June 2023: 1TB $159.99, 2TB $249.99, 4TB $549.99, US. Tom's Guide reported $149 and $229 for 1TB and 2TB at the same launch, which differs. Not stated as MSRP, but the launch price of the WD_BLACK SN850P. Sandisk's 2026 Optimus listing prices are higher and are not launch prices of this hardware

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

€221.996Press articlecomputerbase.de/2023-06/wd-black-sn850p-die-sn850x-ssd-kostet-mit-ps5-lizenz-deutlich-mehrRead 23 October 2026ComputerBase, 7 June 2023: the WD_BLACK SN850P is available from the maker's shop at 138.99 EUR (1TB), 221.99 EUR (2TB) and 463.99 EUR (4TB), Germany, including VAT. No euro price found for the 8TB

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)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026Form factor row reads M.2 2280-S3-M for 1TB and 2TB and M.2 2280-D5-M for 4TB and 8TB

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

1 TB, 2 TB, 4 TB, 8 TB1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 20261GB = 1 billion bytes and 1TB = 1 trillion bytes. Capacities 1TB, 2TB, 4TB, 8TB

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 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)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026Interface row reads PCIe 4.0 x4 NVMe 1.4. Footnote 9: backwards compatible with PCIe 3.0 x4, 3.0 x2, 3.0 x1, 2.0 x4, 2.0 x2 and 2.0 x1

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)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026

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)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026

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

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

1.41Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026Interface row reads PCIe 4.0 x4 NVMe 1.4

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

Not available

Not available

Hardware

5 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 in-house9Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-reviewRead 23 October 2026Specifications table reads Sandisk Proprietary for every capacity. The maker names no controller

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

TLC1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026NAND row reads SANDISK TLC 3D NAND. The data sheet gives no flash generation or layer count

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)

DRAM1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026DRAM cache row reads Yes. The data sheet gives no size

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

1GB9Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-reviewRead 23 October 20262TB sample has 1GB of DDR4 DRAM, half the usual 2GB and half of the review's 2TB WD_BLACK SN850X sample. Other capacities are not stated. The flash is likely BiCS5, but the review hedges and says BiCS6 is possible, so no flash generation is stored

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)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026Module code in the form factor row: S means single-sided and D means double-sided. 1TB and 2TB are 2280-S3-M, 4TB and 8TB are 2280-D5-M. Tom's Hardware also says the bare drive is single-sided at 1TB and 2TB and double-sided at 4TB and 8TB

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.

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

7,300MB/s1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026Up to 7,300 MB/s for 1TB, 2TB and 4TB and 7,200 MB/s for 8TB. Sequential read 1MB, queue depth 8, 1 thread. Based on internal testing, host not named

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

6,600MB/s1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026Up to 6,300 MB/s (1TB) and 6,600 MB/s (2TB, 4TB, 8TB). Queue depth 8, 1 thread. Internal testing, 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.

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

1,200,000IOPS1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026Random read 4KB up to 800K IOPS (1TB) and 1.2M IOPS (2TB, 4TB, 8TB). Queue depth 32, 16 threads. 1.2M is 1200000

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

1,100,000IOPS1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026Random write 4KB up to 1.1M IOPS (1TB, 2TB, 4TB) and 1.2M IOPS (8TB). Queue depth 32, 16 threads

Endurance and reliability

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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

1,200TB1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026600 TB (1TB), 1,200 TB (2TB), 2,400 TB (4TB), 4,800 TB (8TB). JEDEC client workload JESD219. Warranty is 5 years or the TBW limit, 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 spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026Published as MTBF, 1.5 million hours

1,750,000h1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026Published as MTTF up to 1.75M hours, Telcordia SR-332 stress testing at 25 C. Stored as 1750000

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

Min0Max85°C1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 202632 to 185 F (0 to 85 C), as reported by the drive. The non-operating range of -40 to 85 C is not stored

Power

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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

Not available

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

Not available

Measured

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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

6,978MB/s10Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-review/2Read 23 October 20262TB with the PlayStation heatsink. CrystalDiskMark peak sequential read 1MB QD8: 6,978 MB/s, read from the chart. KitGuru has no review of this drive, so Tom's Hardware is the CrystalDiskMark source. Intel Core i9-12900K, Asus ROG Maximus Z790 Hero, drive prefilled to 50 percent and tested as a secondary drive with active cooling. The test file size is not stated in the review

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

6,391MB/s10Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-review/2Read 23 October 2026Peak sequential write 1MB QD8: 6,391 MB/s, same bench

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

95.56MB/s10Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-review/2Read 23 October 2026Random read 4KB QD1: 23,329 IOPS, read from the chart, stored as IOPS x 4096 / 1,000,000, which is 95.56 MB/s

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

403.61MB/s10Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-review/2Read 23 October 2026Random write 4KB QD1: 98,538 IOPS, read from the chart, stored as 403.61 MB/s

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

595GB10Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-review/2Read 23 October 20262TB. Iometer sequential write for 15 minutes: over 6.46 GB/s for just over 92 seconds, a cache of 595GB

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

1,600MB/s10Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-review/2Read 23 October 2026After the cache the drive writes to native TLC at 1.6 GB/s. The text gives a rounded figure

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.

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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

54°C10Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-review/2Read 23 October 20262TB with the heatsink fitted: maximum temperature 54 C on the drive's primary composite sensor, about 22 C ambient, active cooling on the bench. The review does not describe the test behind the figure. Tom's Hardware runs its 15-minute sequential write test on every drive and says its testing is meant to heat the drive to a realistic ceiling

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

1,220mW10Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-review/2Read 23 October 20262TB. Quarch PPM idle power with ASPM/LPM disabled, 1,220 mW, read from chart

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

With heatsink1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026Every model has the exclusive PlayStation heatsink. No bare version is sold

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 Dashboard9Reviewtomshardware.com/pc-components/ssds/sandisk-optimus-gx-pro-850p-2tb-ssd-reviewRead 23 October 2026Sandisk Dashboard, an SSD toolbox, and Acronis True Image for Sandisk. The heatsink has no RGB

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

PS5, Windows1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026System compatibility row reads PlayStation 5, PlayStation 5 Pro, Windows 10+. Footnote 10: PC compatibility is not tested or endorsed by Sony Interactive Entertainment

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

Length80Width24.46Height9.89mm(3.1 × 1 × 0.4 in)1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026Drive with its PlayStation heatsink. Length 80 mm and width 24.46 mm for every capacity, height 9.89 mm for 1TB and 2TB and 10.31 mm for 4TB and 8TB. Footnote 8: length and width vary by +/-0.5 mm. Base is the 2TB

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

24g(0.8 oz)1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 202624 g for 1TB and 2TB and 30.4 g for 4TB and 8TB, with heatsink. Footnote 8: weight varies by +/-10 percent. The Sandisk product page and the WD_BLACK SN850P data sheet give 30.4 g for 1TB and 2TB as well. The newer Sandisk data sheet is stored

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

SANDISK Optimus GX PRO 850P NVMe SSD2Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-850p-ps5-nvme-ssdRead 23 October 2026In The Box reads SANDISK Optimus GX PRO 850P NVMe SSD, the same on every capacity

Cables includediCables supplied with an external drive.

Not available

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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/sandisk-optimus-gx-pro-850p-ps5-nvme-ssd2Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-850p-ps5-nvme-ssdRead 23 October 2026

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

documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdf1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 2026SANDISK Optimus GX PRO 850P data sheet, 2026 copyright. It covers 1TB, 2TB, 4TB and 8TB. The product line was sold as the WD_BLACK SN850P from June 2023, see the Western Digital data sheet source

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

5years1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850p-nvme-ssd.pdfRead 23 October 20265 years or the maximum endurance (TBW) limit, whichever occurs first. The data sheet is global and names no market

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