Samsung 990 vs Samsung 990 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 990 PRO2 GB LPDDR4 DRAM

Sources

Samsung 990

Manufacturer specification

Samsung 990 PRO

Manufacturer specification · 2 TB technical column: 2 GB LPDDR4 DRAM. Separate from the variable Intelligent TurboWrite write buffer.

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 990 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 990 PRO

Manufacturer specification · Terabytes written within the limited-warranty conditions. This is not predicted drive lifespan.

Samsung 990 PRO — manufacturer specifications Samsung internal SSD — current warranty eligibility and model limits

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 990 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 990 PRO

Manufacturer specification · Coverage ends at the time limit or write threshold, whichever occurs first; full Samsung terms and eligibility apply.

Samsung 990 PRO — manufacturer specifications Samsung internal SSD — current warranty eligibility and model limits

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 990 PROUp to 7450 MB/s sequential read; up to 6900 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 990 PRO

Manufacturer specification · Samsung IOmeter 1.1.0 claims on a Ryzen 7 5800X / X570 / Windows 10 test system. Writes use Intelligent TurboWrite; speed varies with workload, firmware and system.

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 990 PRO7450 MB/s

Sources

Samsung 990

Samsung 990 PRO

Manufacturer specification · Samsung IOmeter 1.1.0 claims on a Ryzen 7 5800X / X570 / Windows 10 test system. Writes use Intelligent TurboWrite; speed varies with workload, firmware and system.

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 990 PRO6900 MB/s

Sources

Samsung 990

Samsung 990 PRO

Manufacturer specification · Samsung IOmeter 1.1.0 claims on a Ryzen 7 5800X / X570 / Windows 10 test system. Writes use Intelligent TurboWrite; speed varies with workload, firmware and system.

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 990 PRO1400000 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 990 PRO

Manufacturer specification · Manufacturer up-to claim, QD32 / 16 threads; not a single-thread desktop result. IOmeter 1.1.0 on Ryzen 5800X / X570 Taichi, 32 GB DDR4-3600, Windows 10 Pro, secondary drive. Firmware, host and workload affect results.

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 990 PRO1550000 IOPS

Sources

Samsung 990

Samsung 990 PRO

Manufacturer specification · Manufacturer up-to claim, QD32 / 16 threads with Intelligent TurboWrite active. Same disclosed IOmeter/Ryzen/X570 secondary-drive setup; not a post-cache sustained result.

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

Sources

Samsung 990

Manufacturer specification

Samsung 990 PRO

Manufacturer specification

Samsung 990 PRO — manufacturer specifications Samsung internal SSD — current warranty eligibility and model limits

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 990 PRO55 mW idle; 5.8 W active read; 5.1 W active write; 5 mW L1.2

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 990 PRO

Manufacturer specification · 2 TB datasheet column; idle requires APST on, active values are average read/write under the disclosed IOmeter/Ryzen/X570 test. These power states are not a constant everyday load.

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 990 PRO5.5 W average; 8.5 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 990 PRO

Manufacturer specification · The UK page labels these as system-level average and burst figures and says hardware/configuration affect them. The datasheet separately reports active-read/write and idle states. The two sets use different conditions and are not a constant everyday load.

Samsung 990 PRO — exact UK 2 TB product page

Check the exact configuration and source conditions for your use.

Manufacturer application scope

Samsung 990Client PCs

Samsung 990 PROClient PCs and PlayStation 5

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 990 PRO

Manufacturer specification · Manufacturer-listed application class. The host needs compatible NVMe support, correct installation and cooling.

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)

Check the exact configuration and source conditions for your use.

Small physical differences (1)

Drive dimensions

Samsung 99080.15 × 22.15 × 2.38 mm

Samsung 990 PRO80 × 22 × 2.3 mm

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 PRO

Samsung lists these as maximum dimensions. This version has no factory heatsink. · Manufacturer specification

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

A size or weight trade-off; it does not establish the better product.

Missing or non-comparable evidence (10)

DRAM cache present

Samsung 990Not verified

Samsung 990 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 990 PRO

Manufacturer specification · The 2 TB technical column includes 2 GB LPDDR4. 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 990 PRO2 GB

Sources

Samsung 990

No source recorded for this side.

Samsung 990 PRO

Manufacturer specification · LPDDR4 cache on the 2 TB configuration.

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.

NAND type

Samsung 990Not verified

Samsung 990 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 PRO

Manufacturer specification

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.

Included cloning software

Samsung 990Samsung Magician data transfer

Samsung 990 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 PRO

Samsung does not state this for this model. · Manufacturer specification · Samsung does not list a bundled migration tool for this model. Health, firmware and optimization functions alone do not confirm migration support.

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 read, QD1

Samsung 990Not verified

Samsung 990 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 990 PRO

Manufacturer specification · Manufacturer up-to claim at QD1 / one thread on the disclosed IOmeter 1.1.0 Ryzen/X570 secondary-drive setup. Separate from QD32 headline figures.

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 990 PRO80000 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 990 PRO

Manufacturer specification · Manufacturer up-to claim at QD1 / one thread, with Intelligent TurboWrite active on the disclosed secondary-drive test setup.

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 990 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 990 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 990 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 990 PRO

No source recorded for this side.

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 990 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 990 PRO

No source recorded for this side.

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

Advertised thermal design

Samsung 990Not verified

Samsung 990 PRONickel-coated controller; heat-spreader label; Dynamic Thermal Guard

Sources

Samsung 990

No source recorded for this side.

Samsung 990 PRO

Manufacturer specification · UK feature block describes these thermal measures. Samsung gives no measured temperatures.

Samsung 990 PRO — exact UK 2 TB product page

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 990 PRO

What it brings

Rated up to 7,450 MB/s sequential read and 6,900 MB/s sequential write over PCIe 4.0 x4, with up to 1.4 million random read and 1.55 million random write IOPS.
Manufacturer source
TLC V-NAND with a 2 GB LPDDR4 DRAM cache, plus a five-year warranty covering up to 1,200 TB written.
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, and Samsung does not list a post-cache write speed for this model.
Manufacturer source Manufacturer source
It also works in PCIe 3.0 slots, but its rated speeds need a PCIe 4.0 x4 slot.
Manufacturer source

COMPARE THE DETAILS

Full specifications

How we verify

Differences only

48 of 48 specifications Sources in each row

Source-backed specifications for Samsung 990 and Samsung 990 PRO
Specification	Samsung 990	Samsung 990 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 990 PRO Manufacturer specification · Decimal capacity; usable formatted space is lower. Samsung 990 PRO — manufacturer specifications	2000 GB	2000 GB
SSD / HDD Sources Samsung 990 Manufacturer specification Samsung 990 — exact UK 2 TB MZ-V9V2T0BW specifications and features Samsung 990 PRO Manufacturer specification Samsung 990 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 990 PRO Manufacturer specification Samsung 990 PRO — manufacturer specifications	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 990 PRO Manufacturer specification Samsung 990 PRO — manufacturer specifications	M.2 2280	M.2 2280
Drive dimensionsDifferent 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 990 PRO Samsung lists these as maximum dimensions. This version has no factory heatsink. · Manufacturer specification Samsung 990 PRO — manufacturer specifications	80.15 × 22.15 × 2.38 mm	80 × 22 × 2.3 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 990 PRO Manufacturer specification · Backward compatibility. Suitable NVMe host, lane allocation and physical clearance remain required; Gen 4 headline speeds are not promised on Gen 3. Samsung 990 PRO — manufacturer specifications	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 990 PRO Manufacturer specification · This BW gallery and 2.3 mm bare-board specification show no factory heatsink. A heat-spreader label is not the taller CW heatsink. Host cooling may still be needed. Samsung 990 PRO — manufacturer specifications Samsung 990 PRO — exact UK 2 TB product page	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 990 PRO Manufacturer specification · UK 2 TB page states maximum 9.0 g. This is an upper bound, not measured sample weight or packaged weight. Samsung 990 PRO — exact UK 2 TB product page	9 g	9 g
Advertised thermal design Sources Samsung 990 No source recorded. Samsung 990 PRO Manufacturer specification · UK feature block describes these thermal measures. Samsung gives no measured temperatures. Samsung 990 PRO — exact UK 2 TB product page	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 990 PRO Manufacturer specification · Samsung IOmeter 1.1.0 claims on a Ryzen 7 5800X / X570 / Windows 10 test system. Writes use Intelligent TurboWrite; speed varies with workload, firmware and system. Samsung 990 PRO — manufacturer specifications	Up to 7250 MB/s sequential read; up to 6450 MB/s cached sequential write	Up to 7450 MB/s sequential read; up to 6900 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 990 PRO Manufacturer specification · Samsung IOmeter 1.1.0 claims on a Ryzen 7 5800X / X570 / Windows 10 test system. Writes use Intelligent TurboWrite; speed varies with workload, firmware and system. Samsung 990 PRO — manufacturer specifications	7250 MB/s	7450 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 990 PRO Manufacturer specification · Samsung IOmeter 1.1.0 claims on a Ryzen 7 5800X / X570 / Windows 10 test system. Writes use Intelligent TurboWrite; speed varies with workload, firmware and system. Samsung 990 PRO — manufacturer specifications	6450 MB/s	6900 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 990 PRO Manufacturer specification · Manufacturer up-to claim, QD32 / 16 threads; not a single-thread desktop result. IOmeter 1.1.0 on Ryzen 5800X / X570 Taichi, 32 GB DDR4-3600, Windows 10 Pro, secondary drive. Firmware, host and workload affect results. Samsung 990 PRO — manufacturer specifications	850000 IOPS	1400000 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 990 PRO Manufacturer specification · Manufacturer up-to claim, QD32 / 16 threads with Intelligent TurboWrite active. Same disclosed IOmeter/Ryzen/X570 secondary-drive setup; not a post-cache sustained result. Samsung 990 PRO — manufacturer specifications	1200000 IOPS	1550000 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 990 PRO Manufacturer specification · Manufacturer up-to claim at QD1 / one thread on the disclosed IOmeter 1.1.0 Ryzen/X570 secondary-drive setup. Separate from QD32 headline figures. Samsung 990 PRO — manufacturer specifications	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 990 PRO Manufacturer specification · Manufacturer up-to claim at QD1 / one thread, with Intelligent TurboWrite active on the disclosed secondary-drive test setup. Samsung 990 PRO — manufacturer specifications	Not listed by the manufacturer	80000 IOPS

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 990 PRO Manufacturer specification Samsung 990 PRO — manufacturer specifications	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 990 PRO Manufacturer specification · 2 TB technical column: 2 GB LPDDR4 DRAM. Separate from the variable Intelligent TurboWrite write buffer. Samsung 990 PRO — manufacturer specifications	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 990 PRO Manufacturer specification · The manufacturer identifies only its own controller here. Samsung does not give a codename, process node or stepping. Samsung 990 PRO — manufacturer specifications	Samsung in-house controller	Samsung in-house controller
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 990 PRO Manufacturer specification · The 2 TB technical column includes 2 GB LPDDR4. Having DRAM is not a measured performance result. Samsung 990 PRO — manufacturer specifications	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 990 PRO Manufacturer specification · Manufacturer write caching is active for peak write claims and operates only within a specific transfer size. Samsung does not list the buffer capacity or post-cache write speed for this 2 TB model. Samsung 990 PRO — manufacturer specifications	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 990 PRO No source recorded.	Samsung V-NAND	Not provided
DRAM cache capacity Sources Samsung 990 No source recorded. Samsung 990 PRO Manufacturer specification · LPDDR4 cache on the 2 TB configuration. Samsung 990 PRO — manufacturer specifications	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 990 PRO Manufacturer specification Samsung 990 PRO — manufacturer specifications Samsung internal SSD — current warranty eligibility and model limits	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 990 PRO Manufacturer specification · Coverage ends at the time limit or write threshold, whichever occurs first; full Samsung terms and eligibility apply. Samsung 990 PRO — manufacturer specifications Samsung internal SSD — current warranty eligibility and model limits	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 990 PRO Manufacturer specification · Terabytes written within the limited-warranty conditions. This is not predicted drive lifespan. Samsung 990 PRO — manufacturer specifications Samsung internal SSD — current warranty eligibility and model limits	800 TB	1200 TB
Manufacturer application scopeDifferent 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 990 PRO Manufacturer specification · Manufacturer-listed application class. The host needs compatible NVMe support, correct installation and cooling. Samsung 990 PRO — manufacturer specifications	Client PCs	Client PCs and PlayStation 5
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 990 PRO Manufacturer specification · Statistical manufacturer rating, not the lifespan or guaranteed operating time of an individual drive. Samsung 990 PRO — manufacturer specifications	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 990 PRO Manufacturer specification · Data-security features. Support does not mean encryption is enabled by default or that a particular host policy, OS or security certification is satisfied. Samsung 990 PRO — manufacturer specifications	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 990 PRO Manufacturer specification · TRIM support requires operating-system support. Not every enclosure or host supports it. Samsung 990 PRO — manufacturer specifications	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 990 PRO Manufacturer specification · Drive monitoring support. Health reporting is not a prediction of remaining life. Samsung 990 PRO — manufacturer specifications	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 990 PRO Manufacturer specification · Listed as an internal drive function; Samsung gives no measured benefit. Samsung 990 PRO — manufacturer specifications	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 990 PRO Manufacturer specification · UK feature inventory lists drive-health checks, benchmarks, firmware updates and encrypted-drive tools. Check the current software version and host support. Samsung 990 PRO — exact UK 2 TB product page	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 990 PRO Manufacturer specification · The UK Accessories table lists no installation kit. Check the host supplies the required mounting hardware. Samsung 990 PRO — exact UK 2 TB product page	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 990 PRO Manufacturer specification · The UK specification lists WWN as not supported. This does not mean ordinary NVMe operation or drive identification is unsupported. Samsung 990 PRO — exact UK 2 TB product page	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 990 PRO Manufacturer specification · Manufacturer lists device sleep as supported. Host and operating-system support remain necessary; this is not a measured sleep-power result. Samsung 990 PRO — exact UK 2 TB product page	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 990 PRO Samsung does not state this for this model. · Manufacturer specification · Samsung does not list a bundled migration tool for this model. Health, firmware and optimization functions alone do not confirm migration support. Samsung 990 PRO — manufacturer specifications	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 990 PRO Manufacturer specification · 2 TB datasheet column; idle requires APST on, active values are average read/write under the disclosed IOmeter/Ryzen/X570 test. These power states are not a constant everyday load. Samsung 990 PRO — manufacturer specifications	4.3 W average active read; 3.8 W average active write; 55 mW PS3 idle (APST on); 3 mW PS4 (L1.2)	55 mW idle; 5.8 W active read; 5.1 W active write; 5 mW L1.2
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 990 PRO Manufacturer specification · The UK page labels these as system-level average and burst figures and says hardware/configuration affect them. The datasheet separately reports active-read/write and idle states. The two sets use different conditions and are not a constant everyday load. Samsung 990 PRO — exact UK 2 TB product page	Average read 4.3 W; average write 3.8 W	5.5 W average; 8.5 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 990 PRO Manufacturer specification · Measured through S.M.A.R.T. temperature, with proper airflow recommended. This is not a cooling test. Samsung 990 PRO — manufacturer specifications	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 990 PRO Manufacturer specification · Non-operating range from the technical table; kept separate from operating temperature. Samsung 990 PRO — manufacturer specifications	−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 990 PRO Manufacturer specification · Manufacturer specifies non-condensing conditions. This environmental range is not waterproofing or an IP rating. Samsung 990 PRO — manufacturer specifications	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 990 PRO Manufacturer specification · Manufacturer non-operating test rating. No installed-PC durability or drop-test result is implied. Samsung 990 PRO — manufacturer specifications	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 990 PRO Manufacturer specification · Manufacturer rating retains the stated frequency range; it is not interchangeable with tests using other protocols. Samsung 990 PRO — manufacturer specifications	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 990 PRO Manufacturer specification · Manufacturer allowable supply voltage. Check a compatible M.2 NVMe host; this is not a voltage setting recommendation. Samsung 990 PRO — exact UK 2 TB product page	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 990 PRO No source recorded.	Up to 38% better sequential performance per watt than the 990 PRO (Samsung internal 2 TB test)	Not provided

NVMe interface protocol version 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 990 PRO Manufacturer specification Samsung 990 PRO — manufacturer specifications	2.0	2.0

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 990 PRO No source recorded.	Not listed by the manufacturer	Not provided

First product manufacturer source Second product manufacturer source

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