MSI SPATIUM M461 vs Samsung 990 EVO

MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB)

MSI SPATIUM M461PCIe 4.0 x4; NVMe 1.4

Samsung 990 EVOPCIe 4.0 x4 or PCIe 5.0 x2; NVMe

Sources

MSI SPATIUM M461

Manufacturer specification · MSI lists compatibility with PCIe Gen4, Gen3, Gen2 and Gen1 hosts; earlier generations limit speed.

Samsung 990 EVO

Manufacturer specification · Host support and available lanes determine operation; interface generation is not an application-performance result.

Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet

Check the exact configuration and source conditions for your use.

Warranty write threshold

MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB)

MSI SPATIUM M461450 TB

Samsung 990 EVO1200 TB

Sources

MSI SPATIUM M461

Manufacturer specification · 2 TB value (500 GB: 110; 1 TB: 250; 4 TB: 900); not a guaranteed failure point. The data sheet lists 500GB, 1TB, 2TB and 4TB columns in that order; a single value spans all capacities.

Samsung 990 EVO

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

Samsung 990 EVO — capacity-specific datasheet Samsung consumer SSD limited warranty — model, capacity and first limit

Check the exact configuration and source conditions for your use.

Controller

MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB)

MSI SPATIUM M461Phison E21T

Samsung 990 EVOSamsung in-house controller

Sources

MSI SPATIUM M461

Manufacturer specification

Samsung 990 EVO

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

Compare the exact component configuration. A controller or NAND name is not a measured performance or reliability rating.

Hardware encryption support

MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB)

MSI SPATIUM M461TCG Pyrite

Samsung 990 EVOAES-256; TCG Opal 2.0; IEEE 1667

Sources

MSI SPATIUM M461

Manufacturer specification · Listed as 'Pyrite (Encryption, Data Security)'. Listed security capabilities do not mean encryption is enabled or supported by every host.

Samsung 990 EVO

Manufacturer specification · Listed security capabilities do not mean encryption is enabled or supported by every host.

Listed encryption support does not mean it is enabled. Check the exact host, software and configuration requirements; no security certification is inferred.

Drive management software

MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB)

MSI SPATIUM M461MSI Center

Samsung 990 EVOSamsung Magician

Sources

MSI SPATIUM M461

Manufacturer specification · MSI: monitors SSD health status and key performance metrics in real time.

Samsung 990 EVO

Manufacturer specification · Current feature block lists migration, drive health and firmware updates. Check the current software version and its requirements.

Check the software, operating-system and licence requirements. An available feature does not establish a measured speed improvement or support on every host.

Rated performance and conditions

MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB)

MSI SPATIUM M461Up to 5000 MB/s sequential read; up to 4200 MB/s sequential write

Samsung 990 EVOUp to 5000 MB/s sequential read; up to 4200 MB/s cached sequential write

Sources

MSI SPATIUM M461

Manufacturer specification · MSI up-to claims measured as a secondary drive on a 13th Gen Intel Core i9-13900F / MSI MPG Z790 CARBON WIFI / Windows 11 Pro 22H2 system, using CrystalDiskMark, ATTO Disk Benchmark and IOmeter. MSI does not list a post-cache write speed. The data sheet lists 500GB, 1TB, 2TB and 4TB columns in that order; a single value spans all capacities.

Samsung 990 EVO

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 its buffer. Firmware, host and workload affect results; Samsung does not list a post-cache write speed.

Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — 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.

Show 4 more verified differences

Rated random 4K read

MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB)

MSI SPATIUM M461680000 IOPS

Samsung 990 EVO700000 IOPS

Sources

MSI SPATIUM M461

Manufacturer specification · MSI up-to 4 KB claim for 2 TB; queue depth not stated. The data sheet lists 500GB, 1TB, 2TB and 4TB columns in that order; a single value spans all capacities.

Samsung 990 EVO

Manufacturer specification · Manufacturer up-to claim, 4 KB QD32 / 16 threads. IOmeter 1.1.0, Ryzen 9 7950X / X670E Taichi, 32 GB DDR5-4800, Windows 11 Pro, fan-cooled secondary drive; write results require TurboWrite.

Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — 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 random 4K write

MSI SPATIUM M461880000 IOPS

Samsung 990 EVO800000 IOPS

Sources

MSI SPATIUM M461

Manufacturer specification · MSI up-to 4 KB claim for 2 TB; queue depth not stated. The data sheet lists 500GB, 1TB, 2TB and 4TB columns in that order; a single value spans all capacities.

MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB)

Samsung 990 EVO

Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — 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.

Warranty terms and endurance if applicable

MSI SPATIUM M4615 years or 450 TB written, whichever comes first; limited-warranty terms apply

Samsung 990 EVO5 years or 1200 TB written, whichever comes first; limited-warranty terms apply

Sources

MSI SPATIUM M461

Manufacturer specification

MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB)

Samsung 990 EVO

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

Samsung 990 EVO — capacity-specific datasheet Samsung consumer SSD limited warranty — model, capacity and first limit

Check the exact configuration and source conditions for your use.

Published power conditions

MSI SPATIUM M4614.4 W maximum operating; 50 mW PS3 idle; 5 mW L1.2

Samsung 990 EVO5.5 W active read; 4.7 W active write; 60 mW PS3 idle; 5 mW PS4 sleep

Sources

MSI SPATIUM M461

Manufacturer specification · 2 TB column for maximum power; idle and L1.2 values span all capacities; APST supported. Measured on MSI's stated test system; not a constant everyday load. The data sheet lists 500GB, 1TB, 2TB and 4TB columns in that order; a single value spans all capacities.

MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB)

Samsung 990 EVO

Manufacturer specification · 2 TB column. IOmeter 1.1.0, Ryzen 9 7950X / X670E Taichi, 32 GB DDR5-4800, Windows 11 Pro. Idle requires APST and sleep is L1.2. These are not a constant everyday load.

MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB)

Check the exact configuration and source conditions for your use.

Small physical differences (1)

Drive dimensions

MSI SPATIUM M46180 × 22 × 2.15 mm

Samsung 990 EVO80.15 × 22.15 × 2.38 mm

Sources

MSI SPATIUM M461

Manufacturer specification · Length × width × height of the bare module, all capacities.

Samsung 990 EVO

Samsung lists these as maximum dimensions. This version has no factory heatsink. · Manufacturer specification · Datasheet maximum envelope; the product page's 80 × 22 mm figures are not labelled as maximum tolerances.

Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet

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

Missing or non-comparable evidence (24)

DRAM cache present

MSI SPATIUM M461Not verified

Samsung 990 EVONot verified

Sources

MSI SPATIUM M461

MSI does not state this for this model. · Manufacturer specification · Unlike MSI's DRAM-equipped models, the M461 data sheet has no DRAM Cache row; absence of a row is not recorded as confirmed absence of DRAM.

MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB)

Samsung 990 EVO

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 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet

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

Cache arrangement

MSI SPATIUM M461Not verified

Samsung 990 EVOHost Memory Buffer (HMB)

Sources

MSI SPATIUM M461

No source recorded for this side.

Samsung 990 EVO

Manufacturer specification · HMB uses host memory; it is not a stated onboard DRAM capacity.

Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet

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

DRAM cache capacity

MSI SPATIUM M461Not verified

Samsung 990 EVONot verified

Sources

MSI SPATIUM M461

No source recorded for this side.

Samsung 990 EVO

Samsung does not state this for this model. · Manufacturer specification · Samsung does not list an onboard DRAM capacity. Host-memory use and TurboWrite buffer are distinct.

Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet

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

NAND type

MSI SPATIUM M461Not verified

Samsung 990 EVOSamsung V-NAND TLC

Sources

MSI SPATIUM M461

MSI lists 3D NAND without stating the cell type · Manufacturer specification

MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB)

Samsung 990 EVO

Manufacturer specification · Manufacturer terminology.

Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet

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

Included cloning software

MSI SPATIUM M461Not verified

Samsung 990 EVOSamsung Magician data migration

Sources

MSI SPATIUM M461

No source recorded for this side.

Samsung 990 EVO

Manufacturer specification · The UK feature page advertises data migration through Samsung Magician. Check software version, operating-system support and migration requirements.

Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet

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

Write-buffer technology

MSI SPATIUM M461Not verified

Samsung 990 EVOIntelligent TurboWrite

Sources

MSI SPATIUM M461

No source recorded for this side.

Samsung 990 EVO

Manufacturer specification · Manufacturer write caching is active for peak claims. Samsung does not list the buffer capacity or post-cache write speed for this 2 TB model.

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

Rated random read, QD1

MSI SPATIUM M461Not verified

Samsung 990 EVO20000 IOPS

Sources

MSI SPATIUM M461

No source recorded for this side.

Samsung 990 EVO

Manufacturer specification · Manufacturer QD1 / one-thread 20000 IOPS under the same IOmeter/Ryzen/Windows setup, not measured application latency.

Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet

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

Rated random write, QD1

MSI SPATIUM M461Not verified

Samsung 990 EVO90000 IOPS

Sources

MSI SPATIUM M461

No source recorded for this side.

Samsung 990 EVO

Manufacturer specification · Manufacturer QD1 / one-thread 90000 IOPS under the same IOmeter/Ryzen/Windows setup with TurboWrite active.

Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet

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

Device sleep support

MSI SPATIUM M461Not verified

Samsung 990 EVOYes

Sources

MSI SPATIUM M461

No source recorded for this side.

Samsung 990 EVO

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.

MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB)

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

Error correction support

MSI SPATIUM M461LDPC ECC; end-to-end data path protection

Samsung 990 EVONot verified

Sources

MSI SPATIUM M461

Manufacturer specification

Samsung 990 EVO

No source recorded for this side.

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

Garbage collection

MSI SPATIUM M461Not verified

Samsung 990 EVOYes

Sources

MSI SPATIUM M461

No source recorded for this side.

Samsung 990 EVO

Manufacturer specification · Internal function, not a measured performance uplift.

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

Humidity range

MSI SPATIUM M461Not verified

Samsung 990 EVO5–95%

Sources

MSI SPATIUM M461

No source recorded for this side.

Samsung 990 EVO

Manufacturer specification · Manufacturer specifies non-condensing conditions. This environmental range is not waterproofing or an IP rating.

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

Installation kit included

MSI SPATIUM M461Not verified

Samsung 990 EVONo

Sources

MSI SPATIUM M461

No source recorded for this side.

Samsung 990 EVO

Manufacturer specification · UK page says installation kit not available; no supplied screw or host heatsink is assumed.

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

Earlier PCIe support

MSI SPATIUM M461Not verified

Samsung 990 EVOPCIe Gen 3 x4 and Gen 4 x4

Sources

MSI SPATIUM M461

No source recorded for this side.

Samsung 990 EVO

Manufacturer specification · PDF backward compatibility. Host protocol and lane availability still determine actual operation.

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

Modern Standby support

MSI SPATIUM M461Not verified

Samsung 990 EVOYes

Sources

MSI SPATIUM M461

No source recorded for this side.

Samsung 990 EVO

Manufacturer specification · Official EVO feature block lists Modern Standby. Full platform and operating-system support is required.

MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB)

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

Manufacturer MTBF rating

MSI SPATIUM M461Up to 1,500,000 hours

Samsung 990 EVO1,500,000 hours

Sources

MSI SPATIUM M461

Manufacturer specification · Statistical manufacturer claim, not individual lifespan or guaranteed operating time.

Samsung 990 EVO

Manufacturer specification · Statistical manufacturer claim, not individual lifespan or guaranteed operating time.

Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet

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

NVMe interface protocol version

MSI SPATIUM M461Not verified

Samsung 990 EVO2.0

Sources

MSI SPATIUM M461

No source recorded for this side.

Samsung 990 EVO

Manufacturer specification

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

Non-operating shock rating

MSI SPATIUM M461Not verified

Samsung 990 EVO1500 G; 0.5 ms; three axes

Sources

MSI SPATIUM M461

No source recorded for this side.

Samsung 990 EVO

Manufacturer specification · Manufacturer non-operating claim, not a device drop test.

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

Allowable supply voltage

MSI SPATIUM M461Not verified

Samsung 990 EVO3.3 V ±5%

Sources

MSI SPATIUM M461

No source recorded for this side.

Samsung 990 EVO

Manufacturer specification · Product voltage range. Check the host slot is compatible.

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

Thermal design

MSI SPATIUM M461Not verified

Samsung 990 EVOHeat-spreader label; Dynamic Thermal Guard

Sources

MSI SPATIUM M461

No source recorded for this side.

Samsung 990 EVO

Manufacturer specification · Official feature block lists the label and thermal management. Samsung's 70% efficiency example uses 1 TB models, not this 2 TB drive.

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

Non-operating vibration rating

MSI SPATIUM M461Not verified

Samsung 990 EVO20 G; 20–2000 Hz

Sources

MSI SPATIUM M461

No source recorded for this side.

Samsung 990 EVO

Manufacturer specification · Manufacturer test range; results from different test protocols are not directly comparable.

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

Manufacturer application scope

MSI SPATIUM M461Not verified

Samsung 990 EVOClient PCs

Sources

MSI SPATIUM M461

No source recorded for this side.

Samsung 990 EVO

Manufacturer specification · Manufacturer application class; no enterprise or console installation guarantee.

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

World Wide Name support

MSI SPATIUM M461Not verified

Samsung 990 EVONo

Sources

MSI SPATIUM M461

No source recorded for this side.

Samsung 990 EVO

Manufacturer specification · Product page states WWN is not supported.

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

Maximum drive weight

MSI SPATIUM M461Not verified

Samsung 990 EVO9 g

Sources

MSI SPATIUM M461

No source recorded for this side.

Samsung 990 EVO

Manufacturer specification · UK 2 TB specification maximum, not package mass or a measured sample.

First product manufacturer source Second product manufacturer source

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

11 shared fields have the same recorded value.

WHAT EACH CHOICE ASKS OF YOU

What it brings and what to check

MSI SPATIUM M461

What it brings

Rated up to 5,000 MB/s sequential read, 4,200 MB/s sequential write, 680,000 random read and 880,000 random write IOPS at 2 TB.
Manufacturer source
MSI lists 4.4 W maximum operating power, 50 mW PS3 idle and 5 mW L1.2, plus LDPC ECC, end-to-end data path protection and TCG Pyrite support.
Manufacturer source

What to check

The 2 TB model's warranty write limit is 450 TB.
Manufacturer source
The data sheet has no DRAM cache row and does not state the NAND cell type or a post-cache write speed.
Manufacturer source

Samsung 990 EVO

What it brings

Rated up to 5,000 MB/s sequential read and 4,200 MB/s sequential write, with up to 700,000 random read and 800,000 random write IOPS.
Manufacturer source Manufacturer source
Runs over PCIe 4.0 x4 or PCIe 5.0 x2 and also works in PCIe 3.0 x4 slots, with TLC V-NAND and a five-year warranty covering up to 1,200 TB written.
Manufacturer source Manufacturer source Manufacturer source

What to check

Its PCIe 5.0 mode uses two lanes rather than four, and rated speeds top out at 5,000 MB/s read and 4,200 MB/s write.
Manufacturer source Manufacturer source
Samsung specifies Host Memory Buffer caching and lists no onboard DRAM for this drive. 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

COMPARE THE DETAILS

Full specifications

How we verify

Differences only

46 of 46 specifications Sources in each row

Source-backed specifications for MSI SPATIUM M461 and Samsung 990 EVO
Specification	MSI SPATIUM M461	Samsung 990 EVO

Capacity Sources MSI SPATIUM M461 Manufacturer specification · Manufacturer-listed 2 TB capacity; formatted usable space is lower. MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO Manufacturer specification · Decimal capacity; formatting and system use reduce available space. Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet	2000 GB	2000 GB
SSD / HDD Sources MSI SPATIUM M461 Manufacturer specification MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO Manufacturer specification Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet	SSD	SSD
Interface and versionDifferent Sources MSI SPATIUM M461 Manufacturer specification · MSI lists compatibility with PCIe Gen4, Gen3, Gen2 and Gen1 hosts; earlier generations limit speed. MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO Manufacturer specification · Host support and available lanes determine operation; interface generation is not an application-performance result. Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet	PCIe 4.0 x4; NVMe 1.4	PCIe 4.0 x4 or PCIe 5.0 x2; NVMe
Form factor Sources MSI SPATIUM M461 Manufacturer specification MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO Manufacturer specification · Match the physical format and electrical interface to the host. Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet	M.2 2280	M.2 2280
Drive dimensionsDifferent Sources MSI SPATIUM M461 Manufacturer specification · Length × width × height of the bare module, all capacities. MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO Samsung lists these as maximum dimensions. This version has no factory heatsink. · Manufacturer specification · Datasheet maximum envelope; the product page's 80 × 22 mm figures are not labelled as maximum tolerances. Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet	80 × 22 × 2.15 mm	80.15 × 22.15 × 2.38 mm
Factory heatsink Sources MSI SPATIUM M461 Manufacturer specification · The data sheet lists a 2.15 mm-high bare module and no heatsink. MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO Manufacturer specification · This BW configuration has no factory heatsink; follow the host's cooling requirements. Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet	No	No
Earlier PCIe support Sources MSI SPATIUM M461 No source recorded. Samsung 990 EVO Manufacturer specification · PDF backward compatibility. Host protocol and lane availability still determine actual operation. Samsung 990 EVO — capacity-specific datasheet	Not provided	PCIe Gen 3 x4 and Gen 4 x4
Thermal design Sources MSI SPATIUM M461 No source recorded. Samsung 990 EVO Manufacturer specification · Official feature block lists the label and thermal management. Samsung's 70% efficiency example uses 1 TB models, not this 2 TB drive. Samsung 990 EVO — manufacturer specifications	Not provided	Heat-spreader label; Dynamic Thermal Guard
Maximum drive weight Sources MSI SPATIUM M461 No source recorded. Samsung 990 EVO Manufacturer specification · UK 2 TB specification maximum, not package mass or a measured sample. Samsung 990 EVO — manufacturer specifications	Not provided	9 g

Rated performance and conditionsDifferent Sources MSI SPATIUM M461 Manufacturer specification · MSI up-to claims measured as a secondary drive on a 13th Gen Intel Core i9-13900F / MSI MPG Z790 CARBON WIFI / Windows 11 Pro 22H2 system, using CrystalDiskMark, ATTO Disk Benchmark and IOmeter. MSI does not list a post-cache write speed. The data sheet lists 500GB, 1TB, 2TB and 4TB columns in that order; a single value spans all capacities. MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO 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 its buffer. Firmware, host and workload affect results; Samsung does not list a post-cache write speed. Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet	Up to 5000 MB/s sequential read; up to 4200 MB/s sequential write	Up to 5000 MB/s sequential read; up to 4200 MB/s cached sequential write
Rated sequential read Sources MSI SPATIUM M461 Manufacturer specification · MSI up-to claims measured as a secondary drive on a 13th Gen Intel Core i9-13900F / MSI MPG Z790 CARBON WIFI / Windows 11 Pro 22H2 system, using CrystalDiskMark, ATTO Disk Benchmark and IOmeter. MSI does not list a post-cache write speed. The data sheet lists 500GB, 1TB, 2TB and 4TB columns in that order; a single value spans all capacities. MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO 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 its buffer. Firmware, host and workload affect results; Samsung does not list a post-cache write speed. Samsung 990 EVO — capacity-specific datasheet	5000 MB/s	5000 MB/s
Rated sequential write Sources MSI SPATIUM M461 Manufacturer specification · MSI up-to claims measured as a secondary drive on a 13th Gen Intel Core i9-13900F / MSI MPG Z790 CARBON WIFI / Windows 11 Pro 22H2 system, using CrystalDiskMark, ATTO Disk Benchmark and IOmeter. MSI does not list a post-cache write speed. The data sheet lists 500GB, 1TB, 2TB and 4TB columns in that order; a single value spans all capacities. MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO 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 its buffer. Firmware, host and workload affect results; Samsung does not list a post-cache write speed. Samsung 990 EVO — capacity-specific datasheet	4200 MB/s	4200 MB/s
Rated random 4K readDifferent Sources MSI SPATIUM M461 Manufacturer specification · MSI up-to 4 KB claim for 2 TB; queue depth not stated. The data sheet lists 500GB, 1TB, 2TB and 4TB columns in that order; a single value spans all capacities. MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO Manufacturer specification · Manufacturer up-to claim, 4 KB QD32 / 16 threads. IOmeter 1.1.0, Ryzen 9 7950X / X670E Taichi, 32 GB DDR5-4800, Windows 11 Pro, fan-cooled secondary drive; write results require TurboWrite. Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet	680000 IOPS	700000 IOPS
Rated random 4K writeDifferent Sources MSI SPATIUM M461 Manufacturer specification · MSI up-to 4 KB claim for 2 TB; queue depth not stated. The data sheet lists 500GB, 1TB, 2TB and 4TB columns in that order; a single value spans all capacities. MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO Manufacturer specification · Manufacturer up-to claim, 4 KB QD32 / 16 threads. IOmeter 1.1.0, Ryzen 9 7950X / X670E Taichi, 32 GB DDR5-4800, Windows 11 Pro, fan-cooled secondary drive; write results require TurboWrite. Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet	880000 IOPS	800000 IOPS
Rated random read, QD1 Sources MSI SPATIUM M461 No source recorded. Samsung 990 EVO Manufacturer specification · Manufacturer QD1 / one-thread 20000 IOPS under the same IOmeter/Ryzen/Windows setup, not measured application latency. Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet	Not provided	20000 IOPS
Rated random write, QD1 Sources MSI SPATIUM M461 No source recorded. Samsung 990 EVO Manufacturer specification · Manufacturer QD1 / one-thread 90000 IOPS under the same IOmeter/Ryzen/Windows setup with TurboWrite active. Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet	Not provided	90000 IOPS

ControllerDifferent Sources MSI SPATIUM M461 Manufacturer specification MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO Manufacturer specification · Samsung does not give a codename, stepping or process node. Samsung 990 EVO — capacity-specific datasheet	Phison E21T	Samsung in-house controller
NAND type Sources MSI SPATIUM M461 MSI lists 3D NAND without stating the cell type · Manufacturer specification MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO Manufacturer specification · Manufacturer terminology. Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet	Not listed by the manufacturer	Samsung V-NAND TLC
Cache arrangement Sources MSI SPATIUM M461 No source recorded. Samsung 990 EVO Manufacturer specification · HMB uses host memory; it is not a stated onboard DRAM capacity. Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet	Not provided	Host Memory Buffer (HMB)
Write-buffer technology Sources MSI SPATIUM M461 No source recorded. Samsung 990 EVO Manufacturer specification · Manufacturer write caching is active for peak claims. Samsung does not list the buffer capacity or post-cache write speed for this 2 TB model. Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet	Not provided	Intelligent TurboWrite

Warranty terms and endurance if applicableDifferent Sources MSI SPATIUM M461 Manufacturer specification MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO Manufacturer specification · Manufacturer coverage is subject to purchase eligibility and applicable terms. A used drive may have less coverage left. Samsung 990 EVO — capacity-specific datasheet Samsung consumer SSD limited warranty — model, capacity and first limit	5 years or 450 TB written, whichever comes first; limited-warranty terms apply	5 years or 1200 TB written, whichever comes first; limited-warranty terms apply
Limited warranty time Sources MSI SPATIUM M461 Manufacturer specification · Time limit, not a lifespan prediction. Coverage also ends at the TBW threshold; eligibility and full terms apply. MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO Manufacturer specification · Time limit, not predicted lifespan; coverage also ends at the TBW threshold and is subject to full terms. Samsung 990 EVO — capacity-specific datasheet Samsung consumer SSD limited warranty — model, capacity and first limit	5 years	5 years
Warranty write thresholdDifferent Sources MSI SPATIUM M461 Manufacturer specification · 2 TB value (500 GB: 110; 1 TB: 250; 4 TB: 900); not a guaranteed failure point. The data sheet lists 500GB, 1TB, 2TB and 4TB columns in that order; a single value spans all capacities. MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO Manufacturer specification · Capacity-specific warranty write threshold, not a guaranteed failure point. Samsung 990 EVO — capacity-specific datasheet Samsung consumer SSD limited warranty — model, capacity and first limit	450 TB	1200 TB
Manufacturer MTBF rating Sources MSI SPATIUM M461 Manufacturer specification · Statistical manufacturer claim, not individual lifespan or guaranteed operating time. MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO Manufacturer specification · Statistical manufacturer claim, not individual lifespan or guaranteed operating time. Samsung 990 EVO — capacity-specific datasheet	Up to 1,500,000 hours	1,500,000 hours
Manufacturer application scope Sources MSI SPATIUM M461 No source recorded. Samsung 990 EVO Manufacturer specification · Manufacturer application class; no enterprise or console installation guarantee. Samsung 990 EVO — capacity-specific datasheet	Not provided	Client PCs

Hardware encryption supportDifferent Sources MSI SPATIUM M461 Manufacturer specification · Listed as 'Pyrite (Encryption, Data Security)'. Listed security capabilities do not mean encryption is enabled or supported by every host. MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO Manufacturer specification · Listed security capabilities do not mean encryption is enabled or supported by every host. Samsung 990 EVO — capacity-specific datasheet	TCG Pyrite	AES-256; TCG Opal 2.0; IEEE 1667
TRIM support Sources MSI SPATIUM M461 Manufacturer specification · Manufacturer requires operating-system support. MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO Manufacturer specification · Manufacturer requires operating-system support; the enclosure/host path must also support it. Samsung 990 EVO — capacity-specific datasheet	Yes	Yes
S.M.A.R.T. support Sources MSI SPATIUM M461 Manufacturer specification · Manufacturer monitoring capability, not a remaining-lifespan guarantee. MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO Manufacturer specification · Manufacturer monitoring capability, not a remaining-lifespan guarantee. Samsung 990 EVO — capacity-specific datasheet	Yes	Yes
Error correction support Sources MSI SPATIUM M461 Manufacturer specification MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO No source recorded.	LDPC ECC; end-to-end data path protection	Not provided
Drive management softwareDifferent Sources MSI SPATIUM M461 Manufacturer specification · MSI: monitors SSD health status and key performance metrics in real time. MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO Manufacturer specification · Current feature block lists migration, drive health and firmware updates. Check the current software version and its requirements. Samsung 990 EVO — manufacturer specifications	MSI Center	Samsung Magician
Garbage collection Sources MSI SPATIUM M461 No source recorded. Samsung 990 EVO Manufacturer specification · Internal function, not a measured performance uplift. Samsung 990 EVO — capacity-specific datasheet	Not provided	Yes
Modern Standby support Sources MSI SPATIUM M461 No source recorded. Samsung 990 EVO Manufacturer specification · Official EVO feature block lists Modern Standby. Full platform and operating-system support is required. Samsung 990 EVO — manufacturer specifications	Not provided	Yes
Installation kit included Sources MSI SPATIUM M461 No source recorded. Samsung 990 EVO Manufacturer specification · UK page says installation kit not available; no supplied screw or host heatsink is assumed. Samsung 990 EVO — manufacturer specifications	Not provided	No
World Wide Name support Sources MSI SPATIUM M461 No source recorded. Samsung 990 EVO Manufacturer specification · Product page states WWN is not supported. Samsung 990 EVO — manufacturer specifications	Not provided	No
Device sleep support Sources MSI SPATIUM M461 No source recorded. Samsung 990 EVO 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 990 EVO — manufacturer specifications	Not provided	Yes
Included cloning software Sources MSI SPATIUM M461 No source recorded. Samsung 990 EVO Manufacturer specification · The UK feature page advertises data migration through Samsung Magician. Check software version, operating-system support and migration requirements. Samsung 990 EVO — manufacturer specifications	Not provided	Samsung Magician data migration

Published power conditionsDifferent Sources MSI SPATIUM M461 Manufacturer specification · 2 TB column for maximum power; idle and L1.2 values span all capacities; APST supported. Measured on MSI's stated test system; not a constant everyday load. The data sheet lists 500GB, 1TB, 2TB and 4TB columns in that order; a single value spans all capacities. MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO Manufacturer specification · 2 TB column. IOmeter 1.1.0, Ryzen 9 7950X / X670E Taichi, 32 GB DDR5-4800, Windows 11 Pro. Idle requires APST and sleep is L1.2. These are not a constant everyday load. Samsung 990 EVO — capacity-specific datasheet	4.4 W maximum operating; 50 mW PS3 idle; 5 mW L1.2	5.5 W active read; 4.7 W active write; 60 mW PS3 idle; 5 mW PS4 sleep
Operating temperature Sources MSI SPATIUM M461 Manufacturer specification · Manufacturer operating range; not a measured temperature under a particular workload. MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO Manufacturer specification · Measured by the drive's S.M.A.R.T. temperature; Samsung recommends adequate airflow. Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet	0–70 °C	0–70 °C
Storage temperature Sources MSI SPATIUM M461 Manufacturer specification · Non-operating range, distinct from operation. MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO Manufacturer specification · Non-operating range, distinct from operation. Samsung 990 EVO — capacity-specific datasheet	−40–85 °C	−40–85 °C
Humidity range Sources MSI SPATIUM M461 No source recorded. Samsung 990 EVO Manufacturer specification · Manufacturer specifies non-condensing conditions. This environmental range is not waterproofing or an IP rating. Samsung 990 EVO — capacity-specific datasheet	Not provided	5–95%
Non-operating shock rating Sources MSI SPATIUM M461 No source recorded. Samsung 990 EVO Manufacturer specification · Manufacturer non-operating claim, not a device drop test. Samsung 990 EVO — capacity-specific datasheet	Not provided	1500 G; 0.5 ms; three axes
Non-operating vibration rating Sources MSI SPATIUM M461 No source recorded. Samsung 990 EVO Manufacturer specification · Manufacturer test range; results from different test protocols are not directly comparable. Samsung 990 EVO — capacity-specific datasheet	Not provided	20 G; 20–2000 Hz
Allowable supply voltage Sources MSI SPATIUM M461 No source recorded. Samsung 990 EVO Manufacturer specification · Product voltage range. Check the host slot is compatible. Samsung 990 EVO — manufacturer specifications	Not provided	3.3 V ±5%

NVMe interface protocol version Sources MSI SPATIUM M461 No source recorded. Samsung 990 EVO Manufacturer specification Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet	Not provided	2.0

Show unverified (2)Not verified, not provided or conflicting for both products. Kept for completeness; never counted as a difference.

Specifications without verified values for either product
DRAM cache present Sources MSI SPATIUM M461 MSI does not state this for this model. · Manufacturer specification · Unlike MSI's DRAM-equipped models, the M461 data sheet has no DRAM Cache row; absence of a row is not recorded as confirmed absence of DRAM. MSI SPATIUM M461 PCIe 4.0 NVMe M.2 data sheet (global, 500 GB to 4 TB) Samsung 990 EVO 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 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet	Not listed by the manufacturer	Not listed by the manufacturer
DRAM cache capacity Sources MSI SPATIUM M461 No source recorded. Samsung 990 EVO Samsung does not state this for this model. · Manufacturer specification · Samsung does not list an onboard DRAM capacity. Host-memory use and TurboWrite buffer are distinct. Samsung 990 EVO — manufacturer specifications Samsung 990 EVO — capacity-specific datasheet	Not provided	Not listed by the manufacturer

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