SSDs / Compare

Patriot P320 vs Samsung 990 EVO Plus

A

Product A: Patriot

P320

25 of 63 known

Change Patriot P320

Compare the Samsung 990 EVO Plus with

Search SSDs

B

Product B: Samsung

990 EVO Plus

48 of 63 known

Change Samsung 990 EVO Plus

Compare the Patriot P320 with

Search SSDs

All 63 fields

Every value links to where we found it.

Only differences

APatriot P320

BSamsung 990 EVO Plus

General

5 of 9 differ

Series

Not available

Not available

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

P320P128GM28, P320P256GM28, P320P512GM28, P320P1TBM28, P320P2TBM281Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/P320_product_sheet_81ecde63f3.pdfRead 15 October 2026Ordering Info table: P320P2TBM28 (2TB), P320P1TBM28 (1TB), P320P512GM28 (512GB), P320P256GM28 (256GB) and P320P128GM28 (128GB)

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

4711378427592, 4711378427608, 4711378427615, 4711378427622, 47113784276391Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/P320_product_sheet_81ecde63f3.pdfRead 15 October 2026EAN / UPC Code column: 4711378427639 (2TB), 4711378427622 (1TB), 4711378427615 (512GB), 4711378427608 (256GB) and 4711378427592 (128GB). Stored as printed, 13 digits

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.

Not available

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

Available7Maker product pagepatriotmemory.com/products/p320-pcie-m-2-internal-ssdRead 15 October 2026The page is live in October 2026 and links the P320 SKU sheets. Amazon US listed the 512GB model in stock in August 2026

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.

Not available

$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 spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/P320_product_sheet_81ecde63f3.pdfRead 15 October 2026Form Factor / Interface row reads PCIe Gen3 x4 M.2 2280 NVMe 1.3

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.

128 GB, 256 GB, 512 GB, 1 TB, 2 TB1Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/P320_product_sheet_81ecde63f3.pdfRead 15 October 2026Model / Capacity header: 2TB, 1TB, 512GB, 256GB and 128GB. The sheet gives no byte definition for the capacities

1 TB, 2 TB, 4 TB1Maker spec sheet (PDF)farnell.com/datasheets/4411543.pdfRead 14 October 2026

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)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/P320_product_sheet_81ecde63f3.pdfRead 15 October 2026PCIe Gen3 x4 M.2 2280 NVMe 1.3

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.

31Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/P320_product_sheet_81ecde63f3.pdfRead 15 October 2026PCIe Gen3

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 spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/P320_product_sheet_81ecde63f3.pdfRead 15 October 2026x4

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.

1.31Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/P320_product_sheet_81ecde63f3.pdfRead 15 October 2026NVMe 1.3 as published

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

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.

Not available

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.

Not available

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.

Not available

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.

Not available

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.

None, uses host memory (HMB)9Reviewssd-tester.com/patriot_p320_2tb.htmlRead 15 October 2026Reviewer's SSD-Z readout of the 2TB sample (firmware SN19515): HMB 16384 KB, enabled. The page lists DRAM cache as No. The 512GB and 256GB samples also show HMB enabled, at 16 MB and 8 MB. The 1TB and 128GB capacities were not read out. Maxio MAP1202 and Realtek RTS5766DL controllers are named by the reviewer for different capacities, so the controller is not stored

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.

Not available

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.

Not available

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

4 of 4 differ

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

3,000MB/s1Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/P320_product_sheet_81ecde63f3.pdfRead 15 October 2026Seq. Read/Write (MB/s): 3,000 / 2,200 for 2TB, 1TB and 512GB, 2,200 / 1,200 for 256GB and 1,600 / 1,000 for 128GB. The SKU sheets label the figures CDM, so they are CrystalDiskMark results. The sheet names no host. Base value is the 2TB model

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.

2,200MB/s1Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/P320_product_sheet_81ecde63f3.pdfRead 15 October 2026Same row as read speed. Base value is the 2TB model

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.

Not available

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.

Not available

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

2 of 3 differ

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

960TB1Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/P320_product_sheet_81ecde63f3.pdfRead 15 October 2026Endurance (TBW): 960TB (2TB), 480TB (1TB), 240TB (512GB), 120TB (256GB) and 60TB (128GB). Base value is the 2TB model

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.

Not available

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 spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/P320_product_sheet_81ecde63f3.pdfRead 15 October 2026Operating Temperature 0 ~ 70 C

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

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.

3,553MB/s9Reviewssd-tester.com/patriot_p320_2tb.htmlRead 15 October 2026Test of P320P2TBM28, tested 2025-03-26 on Windows 10 build 19045. CrystalDiskMark SEQ1M Q8T1 read 3553.12 MB/s, stored as 3553. The page refers to its homepage for the test system and names no test size or drive fill. It is above the claimed 3000 MB/s, which the maker also quotes from CrystalDiskMark. KitGuru, Tom's Hardware and StorageReview did not review the drive

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.

2,580MB/s9Reviewssd-tester.com/patriot_p320_2tb.htmlRead 15 October 2026CrystalDiskMark SEQ1M Q8T1 write 2579.93 MB/s, stored as 2580

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.

60.54MB/s9Reviewssd-tester.com/patriot_p320_2tb.htmlRead 15 October 2026CrystalDiskMark RND4K Q1T1 read 60.54 MB/s (14,779.30 IOPS), printed in MB/s by the page

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.

176.14MB/s9Reviewssd-tester.com/patriot_p320_2tb.htmlRead 15 October 2026CrystalDiskMark RND4K Q1T1 write 176.14 MB/s (43,003.90 IOPS), printed in MB/s by the page

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.

Not available

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.

Not available

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.

Not available

Not available

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

Not available

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".

Not available

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

0 of 4 differ

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

Without heatsink7Maker product pagepatriotmemory.com/products/p320-pcie-m-2-internal-ssdRead 15 October 2026The maker's product photos show the bare board with a plain white label and no heatsink. Only the bare drive is sold

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.

Not available

Not available

Dust and water ratingiPublished IP rating of an external drive.

Not available

Not available

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

Not available

Not available

Security and software

2 of 2 differ

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

Not available

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

Not available

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

1 of 1 differ

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.

Windows, macOS, Linux, Other7Maker product pagepatriotmemory.com/products/p320-pcie-m-2-internal-ssdRead 15 October 2026Feature list: Compatible with Windows 7 and later, Mac OS9, X and later, and Linux 2.4 and later, and Compatible with ROG XBOX ALLY. The product sheet names only Windows 7, 8.0, 8.1, 10 and 11 (may need drivers). The product page is stored because it names more systems. The ROG Xbox Ally is a handheld PC, so it is stored as other

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

2 of 2 differ

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

Length80Width22Height3.8mm(3.1 × 0.9 × 0.1 in)1Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/P320_product_sheet_81ecde63f3.pdfRead 15 October 2026Dimension row: 3.15 in (L) x 0.87 in (W) x 0.15 in (H), or 8 cm (L) x 2.2 cm (W) x 0.38 cm (H). Stored as 80 x 22 x 3.8 mm

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.

11g(0.4 oz)1Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/P320_product_sheet_81ecde63f3.pdfRead 15 October 2026Weight row: 0.02 lbs / 11 g for all capacities

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

1 of 2 differ

In the box

Not available

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.

Not available

Not available

Links

Not compared

Product page

www.patriotmemory.com/products/p320-pcie-m-2-internal-ssd7Maker product pagepatriotmemory.com/products/p320-pcie-m-2-internal-ssdRead 15 October 2026Patriot product page titled P320 PCIe Gen3 x4 M.2 2280 SSD. It says capacities go up to 2TB and links the SKU sheets

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

patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/P320_product_sheet_81ecde63f3.pdf1Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/P320_product_sheet_81ecde63f3.pdfRead 15 October 2026Patriot P320 product sheet, one page, PDF created 2024-12-09. It lists all five capacities

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

Not available

Not available

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

Not available

Not available

Warranty

0 of 1 differ

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

5years1Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/P320_product_sheet_81ecde63f3.pdfRead 15 October 2026Warranty row reads 5-year warranty. The sheet names no market. The product page says warranty ends at the TBW limit or the warranty period, whichever comes first

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.