Samsung 990 vs Samsung 980 PRO

Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page)

Samsung 990Host Memory Buffer (HMB)

Samsung 980 PRO2 GB LPDDR4 DRAM

Sources

Samsung 990

Manufacturer specification

Samsung 980 PRO

Manufacturer specification · Manufacturer's stated DRAM cache capacity for this storage capacity.

Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet

Compare the exact DRAM capacity and cache configuration. Onboard DRAM is a separate specification from a write buffer; neither is a measured performance or reliability rating.

Warranty write threshold

Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page)

Samsung 990800 TB

Samsung 980 PRO1200 TB

Sources

Samsung 990

Manufacturer specification · Warranty write threshold for the 2 TB capacity (1 TB model: 400 TB), in compliance with JESD218; not a guaranteed failure point.

Samsung 980 PRO

Manufacturer specification · Capacity-specific warranty write threshold, not a guaranteed failure point.

Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet Samsung consumer SSD limited warranty — model, capacity and first limit

Check the exact configuration and source conditions for your use.

Limited warranty time

Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page)

Samsung 9903 years

Samsung 980 PRO5 years

Sources

Samsung 990

Manufacturer specification · Time limit, not a lifespan prediction. Coverage also ends at the TBW threshold; eligibility and full terms apply.

Samsung 980 PRO

Manufacturer specification · Time limit, not predicted lifespan; coverage also ends at the TBW threshold and is subject to full terms.

Samsung 980 PRO — manufacturer specifications Samsung consumer SSD limited warranty — model, capacity and first limit

Check the exact configuration and source conditions for your use.

Rated performance and conditions

Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page)

Samsung 990Up to 7250 MB/s sequential read; up to 6450 MB/s cached sequential write

Samsung 980 PROUp to 7000 MB/s sequential read; up to 5100 MB/s cached sequential write

Sources

Samsung 990

Manufacturer specification · Manufacturer up-to claims measured with IOmeter 1.1.0, Ryzen 9 7950X, ASRock X670E Taichi, 32 GB DDR5-4800 and Windows 11 Pro. Secondary drive in a fan-cooled desktop; writes use Intelligent TurboWrite within a specific transfer size. Firmware, host and workload affect results; Samsung does not list a post-cache write speed.

Samsung 980 PRO

Manufacturer specification · Samsung IOmeter 1.1.0 claims: Ryzen 9 3900X, ASUS X570 ROG Crosshair VIII Formula, Windows 10 Pro; secondary drive. The datasheet lists additional BIOS, memory and CPU settings used for the test. Writes use Intelligent TurboWrite; peak rates depend on firmware, host, workload and cache state.

Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet

Manufacturer peak claims depend on cache state, host and workload. Queue depth and test systems must match before performance can be compared; these figures do not establish a faster everyday drive.

Rated sequential read

Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page)

Samsung 9907250 MB/s

Samsung 980 PRO7000 MB/s

Sources

Samsung 990

Samsung 980 PRO

Manufacturer peak claims depend on cache state, host and workload. Queue depth and test systems must match before performance can be compared; these figures do not establish a faster everyday drive.

Rated sequential write

Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page)

Samsung 9906450 MB/s

Samsung 980 PRO5100 MB/s

Sources

Samsung 990

Samsung 980 PRO

Manufacturer peak claims depend on cache state, host and workload. Queue depth and test systems must match before performance can be compared; these figures do not establish a faster everyday drive.

Show 6 more verified differences

Rated random read

Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page)

Samsung 990850000 IOPS

Samsung 980 PRO1000000 IOPS

Sources

Samsung 990

Manufacturer specification · Manufacturer up-to claim for the 2 TB column (queue depth and block size not stated in the datasheet). IOmeter 1.1.0, Ryzen 9 7950X / X670E Taichi, 32 GB DDR5-4800, Windows 11 Pro, fan-cooled secondary drive; write results use Intelligent TurboWrite.

Samsung 980 PRO

Manufacturer specification · Up to, 4 KB QD32 / 16 threads; IOmeter 1.1.0, Ryzen 9 3900X / ASUS X570 Crosshair VIII Formula, Windows 10 Pro, secondary drive. PDF lists altered BIOS, memory and CPU settings; writes require TurboWrite. Not directly comparable to a four-thread Intel test.

Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page)

Manufacturer peak claims depend on cache state, host and workload. Queue depth and test systems must match before performance can be compared; these figures do not establish a faster everyday drive.

Rated random write

Samsung 9901200000 IOPS

Samsung 980 PRO1000000 IOPS

Sources

Samsung 990

Samsung 980 PRO

Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page)

Manufacturer peak claims depend on cache state, host and workload. Queue depth and test systems must match before performance can be compared; these figures do not establish a faster everyday drive.

Warranty terms and endurance if applicable

Samsung 9903 years or 800 TB written, whichever comes first; limited-warranty terms apply

Samsung 980 PRO5 years or 1200 TB written, whichever comes first; limited-warranty terms apply

Sources

Samsung 990

Manufacturer specification

Samsung 980 PRO

Manufacturer specification · Manufacturer coverage is subject to purchase eligibility and applicable terms. A used drive may have less coverage left.

Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet Samsung consumer SSD limited warranty — model, capacity and first limit

Check the exact configuration and source conditions for your use.

NVMe interface protocol version

Samsung 9902.0

Samsung 980 PRO1.3c

Sources

Samsung 990

Manufacturer specification

Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page)

Samsung 980 PRO

Manufacturer specification

Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet

Check the exact configuration and source conditions for your use.

Published power conditions

Samsung 9904.3 W average active read; 3.8 W average active write; 55 mW PS3 idle (APST on); 3 mW PS4 (L1.2)

Samsung 980 PRO6.1 W active read; 5.6 W active write; 35 mW idle; 5 mW L1.2 sleep

Sources

Samsung 990

Manufacturer specification · 2 TB column. Active power measured with fio 3.28 on an Intel Core Ultra 7 265K / ASUS Maximus Z890 HERO / Ubuntu 22.04 system with 32 GB DDR5-4800, which differs from the speed test. These are not a constant everyday load.

Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page)

Samsung 980 PRO

Manufacturer specification · 2 TB column, IOmeter 1.1.0 on Ryzen 7 3700X, 16 GB DDR4, Gigabyte X570 AORUS Master, Windows 10 Pro. This differs from the performance host. Idle requires autonomous power-state operation; values are not constant household-use loads.

Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features

Check the exact configuration and source conditions for your use.

Published system-level power

Samsung 990Average read 4.3 W; average write 3.8 W

Samsung 980 PRO6.1 W average; 7.2 W maximum in burst mode

Sources

Samsung 990

Manufacturer specification · UK page 'Average Power Consumption (system level)'; actual power consumption may vary depending on system hardware and configuration.

Samsung 980 PRO

Manufacturer specification · The UK page labels a system-level average and a burst maximum. Hardware/configuration affect consumption. These are distinct from datasheet active read/write and idle/sleep states and are not a constant everyday load.

Samsung 980 PRO — manufacturer specifications

Check the exact configuration and source conditions for your use.

Missing or non-comparable evidence (13)

DRAM cache present

Samsung 990Not verified

Samsung 980 PROYes

Sources

Samsung 990

Samsung does not state this for this model. · Manufacturer specification · Samsung's tables specify HMB and do not state whether onboard DRAM is present. Host memory buffering is not onboard DRAM.

Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page)

Samsung 980 PRO

Manufacturer specification · Capacity row lists onboard LPDDR4 DRAM. Having DRAM is not a measured performance result.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

DRAM cache capacity

Samsung 990Not verified

Samsung 980 PRO2 GB

Sources

Samsung 990

No source recorded for this side.

Samsung 980 PRO

Manufacturer specification · Capacity LPDDR4 DRAM size; not the variable TurboWrite write-buffer capacity.

Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page)

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Controller

Samsung 990Samsung in-house controller

Samsung 980 PROSamsung Elpis

Sources

Samsung 990

Manufacturer specification · Samsung does not give a codename, stepping or process node.

Samsung 980 PRO

Named Elpis on Samsung's UK technical page; the current PDF revision describes it only as a Samsung in-house controller. · Manufacturer specification · UK technical page names Elpis. The current PDF revision (2.1) describes it only as a Samsung in-house controller.

Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet

One source states less detail or a rounded figure. This is not a verified difference; check the exact configuration.

NAND type

Samsung 990Not verified

Samsung 980 PROSamsung V-NAND TLC

Sources

Samsung 990

Both reviewed exact technical sources say Samsung V-NAND without specifying the NAND cell type. TLC, QLC or another cell type is not established. Preserve the positive V-NAND technology separately. · Manufacturer specification

Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page)

Samsung 980 PRO

Manufacturer specification · Manufacturer calls this 3-bit MLC: three bits per cell, also called TLC. This is not two-bit MLC.

Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet Samsung NAND terminology: TLC stores three bits per cell

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Included cloning software

Samsung 990Samsung Magician data transfer

Samsung 980 PRONot verified

Sources

Samsung 990

Manufacturer specification · The UK feature block says Magician can transfer data. Check software version, operating-system support and migration requirements.

Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features

Samsung 980 PRO

Samsung does not state this for this model. · Manufacturer specification · Samsung does not list a bundled cloning tool for this model. Magician health monitoring and firmware updates alone do not confirm migration support.

Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Rated random read, QD1

Samsung 990Not verified

Samsung 980 PRO22000 IOPS

Sources

Samsung 990

Samsung does not state this for this model. · Manufacturer specification · Samsung's 2 TB page and data sheet do not list QD1 results.

Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page)

Samsung 980 PRO

Manufacturer specification · Up-to QD1 / one-thread value for this capacity under the manufacturer performance test setup. Not measured application latency.

Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page)

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Rated random write, QD1

Samsung 990Not verified

Samsung 980 PRO60000 IOPS

Sources

Samsung 990

Samsung does not state this for this model. · Manufacturer specification · Samsung's 2 TB page and data sheet do not list QD1 results.

Samsung 980 PRO

Manufacturer specification · Up-to QD1 / one-thread 60000 IOPS for this 2 TB capacity with Intelligent TurboWrite under the stated modified Ryzen/ASUS test setup. Not application latency.

Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Modern Standby support

Samsung 990Not verified

Samsung 980 PRONot verified

Sources

Samsung 990

Samsung does not state this for this model. · Manufacturer specification · Samsung does not state Modern Standby support; device sleep is a separate feature.

Samsung 980 PRO

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

NAND technology

Samsung 990Samsung V-NAND

Samsung 980 PRONot verified

Sources

Samsung 990

Manufacturer specification

Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page)

Samsung 980 PRO

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Rated performance on PCIe 3.0

Samsung 990Not verified

Samsung 980 PROUp to 3500/3470 MB/s sequential read/write; 680000/630000 IOPS random read/write

Sources

Samsung 990

No source recorded for this side.

Samsung 980 PRO

Manufacturer specification · 2 TB backward-compatible mode in PDF footnote 2. Not the PCIe 4.0 peak figures or the 1 TB/250 GB values. Same manufacturer TurboWrite/test qualifications; actual host may differ.

Samsung 980 PRO — manufacturer specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Published burst power

Samsung 990Not verified

Samsung 980 PRO7.2 W

Sources

Samsung 990

No source recorded for this side.

Samsung 980 PRO

Manufacturer specification · UK page maximum burst-mode claim; distinct from average active, idle or constant use.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Advertised efficiency comparison

Samsung 990Up to 38% better sequential performance per watt than the 990 PRO (Samsung internal 2 TB test)

Samsung 980 PRONot verified

Sources

Samsung 990

Manufacturer specification · Samsung internal test: 990 at 1,686/1,697 MB/s per watt read/write versus 990 PRO at 1,221/1,254 MB/s per watt, 2 TB capacity, fio 3.28 on a Core Ultra 7 265K system. A manufacturer comparison, not a measured saving in any particular PC.

Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features

Samsung 980 PRO

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Thermal design

Samsung 990Not verified

Samsung 980 PRONickel-coated controller; heat-spreader label; Dynamic Thermal Guard

Sources

Samsung 990

No source recorded for this side.

Samsung 980 PRO

Manufacturer specification · Official thermal features. Not a factory heatsink enclosure or measured temperature advantage.

Samsung 980 PRO — manufacturer specifications

Evidence is missing or conflicting on at least one side. This is not a verified difference.

25 shared fields have the same recorded value.

WHAT EACH CHOICE ASKS OF YOU

What it brings and what to check

Samsung 990

What it brings

Rated up to 7,250 MB/s sequential read and 6,450 MB/s sequential write, with up to 850K random read and 1.2 million random write IOPS at 2 TB.
Manufacturer source Manufacturer source
Samsung lists AES 256-bit encryption with TCG Opal 2.0 and IEEE 1667, a 3 mW PS4 sleep state, and Samsung Magician support for data transfer, drive health and firmware updates.
Manufacturer source Manufacturer source
Samsung claims up to 38% better sequential performance per watt than the 990 PRO in its own 2 TB test, and the drive is backward compatible with PCIe 3.0.
Manufacturer source Manufacturer source

What to check

The limited warranty is 3 years or 800 TB written, whichever comes first.
Manufacturer source Manufacturer source
Samsung specifies Host Memory Buffer caching and lists no onboard DRAM. Peak write figures use Intelligent TurboWrite, and no post-cache write speed is published.
Manufacturer source Manufacturer source
Capacities stop at 2 TB, and Samsung does not state the NAND cell type.
Manufacturer source

Samsung 980 PRO

What it brings

Rated up to 7,000 MB/s sequential read and 5,100 MB/s sequential write over PCIe 4.0 x4, with up to 1 million random read and write IOPS.
Manufacturer source Manufacturer source
TLC V-NAND with a 2 GB LPDDR4 DRAM cache and Samsung's Elpis controller, plus a five-year warranty covering up to 1,200 TB written.
Manufacturer source Manufacturer source Manufacturer source Manufacturer source

What to check

No factory heatsink, so plan for motherboard or case cooling. Peak write speed relies on the TurboWrite cache.
Manufacturer source Manufacturer source

COMPARE THE DETAILS

Full specifications

How we verify

Differences only

50 of 50 specifications Sources in each row

Source-backed specifications for Samsung 990 and Samsung 980 PRO
Specification	Samsung 990	Samsung 980 PRO

Capacity Sources Samsung 990 Manufacturer specification · Decimal capacity (1 GB = 1 billion bytes, IDEMA); formatted usable space is lower. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Decimal capacity; formatting and system use reduce available space. Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet	2000 GB	2000 GB
SSD / HDD Sources Samsung 990 Manufacturer specification Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung 980 PRO Manufacturer specification Samsung 980 PRO — manufacturer specifications	SSD	SSD
Interface and version Sources Samsung 990 Manufacturer specification · Samsung states the 990 is backward compatible with PCIe 3.0. Host protocol and lane availability still determine actual operation. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Host support and available lanes determine operation; interface generation is not an application-performance result. Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet	PCIe 4.0 x4; NVMe	PCIe 4.0 x4; NVMe
Form factor Sources Samsung 990 Manufacturer specification Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Match the physical format and electrical interface to the host. Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet	M.2 2280	M.2 2280
Drive dimensions Sources Samsung 990 Samsung lists these as maximum dimensions. This version has no factory heatsink. · Manufacturer specification · Samsung lists maximum width × height × depth for the bare module. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Samsung lists these as maximum dimensions. This version has no factory heatsink. · Manufacturer specification · Manufacturer dimensions; confirm installation clearance. Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet	80.15 × 22.15 × 2.38 mm	80.15 × 22.15 × 2.38 mm
Earlier PCIe support Sources Samsung 990 Manufacturer specification · Data sheet footnote: backward compatible with PCIe 3.0. Host protocol and lane availability still determine actual operation and speed. Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · PCIe 3.0 backward compatibility. The 2 TB four-lane PCIe 3 mode ratings are listed separately; host protocol and lane availability determine operation. Samsung 980 PRO — capacity-specific datasheet	PCIe 3.0	PCIe Gen 3
Factory heatsink Sources Samsung 990 Manufacturer specification · The UK specification lists a bare module with a maximum depth of 2.38 mm and no heatsink; the official gallery shows a bare module. A thermal label is not an enclosure. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung 980 PRO Manufacturer specification · This BW configuration has no factory heatsink; follow the host's cooling requirements. Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet	No	No
Maximum drive weight Sources Samsung 990 Manufacturer specification · UK 2 TB specification maximum, not package mass or a measured sample. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung 980 PRO Manufacturer specification · UK capacity-specific maximum drive mass, not packaging. Samsung 980 PRO — manufacturer specifications	9 g	9 g
Thermal design Sources Samsung 990 No source recorded. Samsung 980 PRO Manufacturer specification · Official thermal features. Not a factory heatsink enclosure or measured temperature advantage. Samsung 980 PRO — manufacturer specifications	Not provided	Nickel-coated controller; heat-spreader label; Dynamic Thermal Guard

Rated performance and conditionsDifferent Sources Samsung 990 Manufacturer specification · Manufacturer up-to claims measured with IOmeter 1.1.0, Ryzen 9 7950X, ASRock X670E Taichi, 32 GB DDR5-4800 and Windows 11 Pro. Secondary drive in a fan-cooled desktop; writes use Intelligent TurboWrite within a specific transfer size. Firmware, host and workload affect results; Samsung does not list a post-cache write speed. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Samsung IOmeter 1.1.0 claims: Ryzen 9 3900X, ASUS X570 ROG Crosshair VIII Formula, Windows 10 Pro; secondary drive. The datasheet lists additional BIOS, memory and CPU settings used for the test. Writes use Intelligent TurboWrite; peak rates depend on firmware, host, workload and cache state. Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet	Up to 7250 MB/s sequential read; up to 6450 MB/s cached sequential write	Up to 7000 MB/s sequential read; up to 5100 MB/s cached sequential write
Rated sequential readDifferent Sources Samsung 990 Manufacturer specification · Manufacturer up-to claims measured with IOmeter 1.1.0, Ryzen 9 7950X, ASRock X670E Taichi, 32 GB DDR5-4800 and Windows 11 Pro. Secondary drive in a fan-cooled desktop; writes use Intelligent TurboWrite within a specific transfer size. Firmware, host and workload affect results; Samsung does not list a post-cache write speed. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Samsung IOmeter 1.1.0 claims: Ryzen 9 3900X, ASUS X570 ROG Crosshair VIII Formula, Windows 10 Pro; secondary drive. The datasheet lists additional BIOS, memory and CPU settings used for the test. Writes use Intelligent TurboWrite; peak rates depend on firmware, host, workload and cache state. Samsung 980 PRO — capacity-specific datasheet	7250 MB/s	7000 MB/s
Rated sequential writeDifferent Sources Samsung 990 Manufacturer specification · Manufacturer up-to claims measured with IOmeter 1.1.0, Ryzen 9 7950X, ASRock X670E Taichi, 32 GB DDR5-4800 and Windows 11 Pro. Secondary drive in a fan-cooled desktop; writes use Intelligent TurboWrite within a specific transfer size. Firmware, host and workload affect results; Samsung does not list a post-cache write speed. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Samsung IOmeter 1.1.0 claims: Ryzen 9 3900X, ASUS X570 ROG Crosshair VIII Formula, Windows 10 Pro; secondary drive. The datasheet lists additional BIOS, memory and CPU settings used for the test. Writes use Intelligent TurboWrite; peak rates depend on firmware, host, workload and cache state. Samsung 980 PRO — capacity-specific datasheet	6450 MB/s	5100 MB/s
Rated random readDifferent Sources Samsung 990 Manufacturer specification · Manufacturer up-to claim for the 2 TB column (queue depth and block size not stated in the datasheet). IOmeter 1.1.0, Ryzen 9 7950X / X670E Taichi, 32 GB DDR5-4800, Windows 11 Pro, fan-cooled secondary drive; write results use Intelligent TurboWrite. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Up to, 4 KB QD32 / 16 threads; IOmeter 1.1.0, Ryzen 9 3900X / ASUS X570 Crosshair VIII Formula, Windows 10 Pro, secondary drive. PDF lists altered BIOS, memory and CPU settings; writes require TurboWrite. Not directly comparable to a four-thread Intel test. Samsung 980 PRO — capacity-specific datasheet	850000 IOPS	1000000 IOPS
Rated random writeDifferent Sources Samsung 990 Manufacturer specification · Manufacturer up-to claim for the 2 TB column (queue depth and block size not stated in the datasheet). IOmeter 1.1.0, Ryzen 9 7950X / X670E Taichi, 32 GB DDR5-4800, Windows 11 Pro, fan-cooled secondary drive; write results use Intelligent TurboWrite. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Up to, 4 KB QD32 / 16 threads; IOmeter 1.1.0, Ryzen 9 3900X / ASUS X570 Crosshair VIII Formula, Windows 10 Pro, secondary drive. PDF lists altered BIOS, memory and CPU settings; writes require TurboWrite. Not directly comparable to a four-thread Intel test. Samsung 980 PRO — capacity-specific datasheet	1200000 IOPS	1000000 IOPS
Rated random read, QD1 Sources Samsung 990 Samsung does not state this for this model. · Manufacturer specification · Samsung's 2 TB page and data sheet do not list QD1 results. Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Up-to QD1 / one-thread value for this capacity under the manufacturer performance test setup. Not measured application latency. Samsung 980 PRO — capacity-specific datasheet	Not listed by the manufacturer	22000 IOPS
Rated random write, QD1 Sources Samsung 990 Samsung does not state this for this model. · Manufacturer specification · Samsung's 2 TB page and data sheet do not list QD1 results. Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Up-to QD1 / one-thread 60000 IOPS for this 2 TB capacity with Intelligent TurboWrite under the stated modified Ryzen/ASUS test setup. Not application latency. Samsung 980 PRO — capacity-specific datasheet	Not listed by the manufacturer	60000 IOPS
Rated performance on PCIe 3.0 Sources Samsung 990 No source recorded. Samsung 980 PRO Manufacturer specification · 2 TB backward-compatible mode in PDF footnote 2. Not the PCIe 4.0 peak figures or the 1 TB/250 GB values. Same manufacturer TurboWrite/test qualifications; actual host may differ. Samsung 980 PRO — capacity-specific datasheet	Not provided	Up to 3500/3470 MB/s sequential read/write; 680000/630000 IOPS random read/write

NAND type Sources Samsung 990 Both reviewed exact technical sources say Samsung V-NAND without specifying the NAND cell type. TLC, QLC or another cell type is not established. Preserve the positive V-NAND technology separately. · Manufacturer specification Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Manufacturer calls this 3-bit MLC: three bits per cell, also called TLC. This is not two-bit MLC. Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet Samsung NAND terminology: TLC stores three bits per cell	Not listed by the manufacturer	Samsung V-NAND TLC
Cache arrangementDifferent Sources Samsung 990 Manufacturer specification Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Manufacturer's stated DRAM cache capacity for this storage capacity. Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet	Host Memory Buffer (HMB)	2 GB LPDDR4 DRAM
Controller Sources Samsung 990 Manufacturer specification · Samsung does not give a codename, stepping or process node. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Named Elpis on Samsung's UK technical page; the current PDF revision describes it only as a Samsung in-house controller. · Manufacturer specification · UK technical page names Elpis. The current PDF revision (2.1) describes it only as a Samsung in-house controller. Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet	Samsung in-house controller	Samsung Elpis
DRAM cache present Sources Samsung 990 Samsung does not state this for this model. · Manufacturer specification · Samsung's tables specify HMB and do not state whether onboard DRAM is present. Host memory buffering is not onboard DRAM. Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Capacity row lists onboard LPDDR4 DRAM. Having DRAM is not a measured performance result. Samsung 980 PRO — capacity-specific datasheet	Not listed by the manufacturer	Yes
Write-buffer technology Sources Samsung 990 Manufacturer specification · Manufacturer write caching is active for peak write claims and operates only within a specific data transfer size. Samsung does not list the buffer capacity or post-cache write speed for this 2 TB model. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Peak write claims require the buffer. Samsung does not list the buffer capacity or post-cache write speed. Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet	Intelligent TurboWrite	Intelligent TurboWrite
NAND technology Sources Samsung 990 Manufacturer specification Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO No source recorded.	Samsung V-NAND	Not provided
DRAM cache capacity Sources Samsung 990 No source recorded. Samsung 980 PRO Manufacturer specification · Capacity LPDDR4 DRAM size; not the variable TurboWrite write-buffer capacity. Samsung 980 PRO — capacity-specific datasheet	Not provided	2 GB

Warranty terms and endurance if applicableDifferent Sources Samsung 990 Manufacturer specification Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Manufacturer coverage is subject to purchase eligibility and applicable terms. A used drive may have less coverage left. Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet Samsung consumer SSD limited warranty — model, capacity and first limit	3 years or 800 TB written, whichever comes first; limited-warranty terms apply	5 years or 1200 TB written, whichever comes first; limited-warranty terms apply
Limited warranty timeDifferent Sources Samsung 990 Manufacturer specification · Time limit, not a lifespan prediction. Coverage also ends at the TBW threshold; eligibility and full terms apply. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Time limit, not predicted lifespan; coverage also ends at the TBW threshold and is subject to full terms. Samsung 980 PRO — manufacturer specifications Samsung consumer SSD limited warranty — model, capacity and first limit	3 years	5 years
Warranty write thresholdDifferent Sources Samsung 990 Manufacturer specification · Warranty write threshold for the 2 TB capacity (1 TB model: 400 TB), in compliance with JESD218; not a guaranteed failure point. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Capacity-specific warranty write threshold, not a guaranteed failure point. Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet Samsung consumer SSD limited warranty — model, capacity and first limit	800 TB	1200 TB
Manufacturer application scope Sources Samsung 990 Manufacturer specification · Manufacturer application class; no enterprise or console installation guarantee. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Application class, not universal system/console compatibility. Samsung 980 PRO — capacity-specific datasheet	Client PCs	Client PCs
Manufacturer MTBF rating Sources Samsung 990 Manufacturer specification · Statistical manufacturer claim, not individual lifespan or guaranteed operating time. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Statistical claim, not an individual lifespan or warranty. Samsung 980 PRO — capacity-specific datasheet	1,500,000 hours	1,500,000 hours

Hardware encryption support Sources Samsung 990 Manufacturer specification · Listed security capabilities do not mean encryption is enabled or supported by every host. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Manufacturer capabilities, not encryption enabled by default or every-host support. Samsung 980 PRO — capacity-specific datasheet	AES-256; TCG Opal 2.0; IEEE 1667	AES-256; TCG Opal 2.0; IEEE 1667
TRIM support Sources Samsung 990 Manufacturer specification · Manufacturer requires operating-system support; the host path must also support it. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Requires operating-system support as stated by manufacturer. Samsung 980 PRO — capacity-specific datasheet	Yes	Yes
S.M.A.R.T. support Sources Samsung 990 Manufacturer specification · Manufacturer monitoring capability, not a remaining-lifespan guarantee. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung 980 PRO Manufacturer specification · Monitoring capability, not predicted remaining life. Samsung 980 PRO — capacity-specific datasheet	Yes	Yes
Garbage collection Sources Samsung 990 Manufacturer specification · Internal function, not a measured performance uplift. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung 980 PRO Manufacturer specification · Listed internal function. Samsung 980 PRO — capacity-specific datasheet	Yes	Yes
Drive management software Sources Samsung 990 Manufacturer specification · UK feature block: data transfer, drive-health tracking and firmware updates. Check the current software version and its requirements. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung 980 PRO Manufacturer specification · Manufacturer feature block lists monitoring and software/firmware updates. OS/version support and feature prerequisites require separate checking. Samsung 980 PRO — manufacturer specifications	Samsung Magician	Samsung Magician
Installation kit included Sources Samsung 990 Manufacturer specification · UK page says installation kit not available; no supplied screw or host heatsink is assumed. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung 980 PRO Manufacturer specification · No installation kit is included. Samsung 980 PRO — manufacturer specifications	No	No
World Wide Name support Sources Samsung 990 Manufacturer specification · Product page states WWN is not supported. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung 980 PRO Manufacturer specification · Product page states WWN unsupported. Samsung 980 PRO — manufacturer specifications	No	No
Device sleep support Sources Samsung 990 Manufacturer specification · The UK page lists device sleep mode support. Host support is required; device sleep is not the same as Modern Standby and gives no battery-life figure. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung 980 PRO Manufacturer specification · The UK page supports device sleep. Host support is required; device sleep is not the same as Modern Standby and gives no battery-life figure. Samsung 980 PRO — manufacturer specifications	Yes	Yes
Included cloning software Sources Samsung 990 Manufacturer specification · The UK feature block says Magician can transfer data. Check software version, operating-system support and migration requirements. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung 980 PRO Samsung does not state this for this model. · Manufacturer specification · Samsung does not list a bundled cloning tool for this model. Magician health monitoring and firmware updates alone do not confirm migration support. Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet	Samsung Magician data transfer	Not provided

Published power conditionsDifferent Sources Samsung 990 Manufacturer specification · 2 TB column. Active power measured with fio 3.28 on an Intel Core Ultra 7 265K / ASUS Maximus Z890 HERO / Ubuntu 22.04 system with 32 GB DDR5-4800, which differs from the speed test. These are not a constant everyday load. Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · 2 TB column, IOmeter 1.1.0 on Ryzen 7 3700X, 16 GB DDR4, Gigabyte X570 AORUS Master, Windows 10 Pro. This differs from the performance host. Idle requires autonomous power-state operation; values are not constant household-use loads. Samsung 980 PRO — capacity-specific datasheet	4.3 W average active read; 3.8 W average active write; 55 mW PS3 idle (APST on); 3 mW PS4 (L1.2)	6.1 W active read; 5.6 W active write; 35 mW idle; 5 mW L1.2 sleep
Published system-level powerDifferent Sources Samsung 990 Manufacturer specification · UK page 'Average Power Consumption (system level)'; actual power consumption may vary depending on system hardware and configuration. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung 980 PRO Manufacturer specification · The UK page labels a system-level average and a burst maximum. Hardware/configuration affect consumption. These are distinct from datasheet active read/write and idle/sleep states and are not a constant everyday load. Samsung 980 PRO — manufacturer specifications	Average read 4.3 W; average write 3.8 W	6.1 W average; 7.2 W maximum in burst mode
Operating temperature Sources Samsung 990 Manufacturer specification · 0–70 °C is the S.M.A.R.T. operating temperature with airflow recommended, not an independent cooling measurement. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Measured by the drive's S.M.A.R.T. temperature; Samsung recommends adequate airflow. Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet	0–70 °C	0–70 °C
Storage temperature Sources Samsung 990 Manufacturer specification · Non-operating range, distinct from operation. Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · PDF non-operating range −40–85 °C, distinct from 0–70 °C operation. Samsung 980 PRO — capacity-specific datasheet	−40–85 °C	−40–85 °C
Humidity range Sources Samsung 990 Manufacturer specification · Manufacturer specifies non-condensing conditions. This environmental range is not waterproofing or an IP rating. Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Manufacturer specifies non-condensing conditions. This environmental range is not waterproofing or an IP rating. Samsung 980 PRO — capacity-specific datasheet	5–95%	5–95%
Non-operating shock rating Sources Samsung 990 Manufacturer specification · Manufacturer non-operating claim, not a device drop test. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Manufacturer non-operating claim, not a device drop test. Samsung 980 PRO — capacity-specific datasheet	1500 G; 0.5 ms; three axes	1500 G; 0.5 ms; three axes
Non-operating vibration rating Sources Samsung 990 Manufacturer specification · Manufacturer test range; results from different test protocols are not directly comparable. Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification · Manufacturer frequency/rating; results from different test protocols are not directly comparable. Samsung 980 PRO — capacity-specific datasheet	20 G; 20–2000 Hz	20 G; 20–2000 Hz
Allowable supply voltage Sources Samsung 990 Manufacturer specification · Product voltage range. Check the host slot is compatible. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung 980 PRO Manufacturer specification · UK electrical requirement, not sufficient proof of host compatibility. Samsung 980 PRO — manufacturer specifications	3.3 V ±5%	3.3 V ±5%
Advertised efficiency comparison Sources Samsung 990 Manufacturer specification · Samsung internal test: 990 at 1,686/1,697 MB/s per watt read/write versus 990 PRO at 1,221/1,254 MB/s per watt, 2 TB capacity, fio 3.28 on a Core Ultra 7 265K system. A manufacturer comparison, not a measured saving in any particular PC. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung 980 PRO No source recorded.	Up to 38% better sequential performance per watt than the 990 PRO (Samsung internal 2 TB test)	Not provided
Published burst power Sources Samsung 990 No source recorded. Samsung 980 PRO Manufacturer specification · UK page maximum burst-mode claim; distinct from average active, idle or constant use. Samsung 980 PRO — manufacturer specifications	Not provided	7.2 W

NVMe interface protocol versionDifferent Sources Samsung 990 Manufacturer specification Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung SSD 990 data sheet, revision 1.0 (linked from the UK MZ-V9V2T0BW page) Samsung 980 PRO Manufacturer specification Samsung 980 PRO — manufacturer specifications Samsung 980 PRO — capacity-specific datasheet	2.0	1.3c

Show unverified (1)Not verified, not provided or conflicting for both products. Kept for completeness; never counted as a difference.

Specifications without verified values for either product
Modern Standby support Sources Samsung 990 Samsung does not state this for this model. · Manufacturer specification · Samsung does not state Modern Standby support; device sleep is a separate feature. Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung 980 PRO No source recorded.	Not listed by the manufacturer	Not provided

First product manufacturer source Second product manufacturer source

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