A 2 TB NVMe SSD rated up to 5,000 MB/s read and 4,200 MB/s write over PCIe 4.0 x4 or PCIe 5.0 x2, with TLC V-NAND and a 1,200 TB write rating. It has no factory heatsink.
Specifications checked 11 Sept 2026.
Amazon links open search results. Check the exact variant, current price and availability with the retailer.
3 verified differences: Interface and version, rated performance and conditions and warranty terms and endurance if applicable. Compared in full below. Not a rating.
Samsung’s 860 EVO SATA M.2 SSD 2TB in the exact UK MZ-N6E2T0BW configuration. Capacity, interface, form factor and rated performance refer to this exact storage configuration.
Specifications checked 17 Oct 2026.
Amazon links open search results. Check the exact variant, current price and availability with the retailer.
Search links open retailer results, not a matched listing; eBay listings are checked daily. As an Amazon Associate I earn from qualifying purchases. As an eBay Partner, we may be compensated if you make a purchase.
THE DIFFERENCES, MADE VISIBLE
Visual facts
Differences first. Select a topic for its graphic, sources and conditions.
How to read this comparison
Manufacturer facts for the exact models shown. Not a quality rating or a test result.
“Different” means the known values differ, not that one is better.
Missing or conflicting evidence is marked and never counts as a difference. Source chips hold each fact’s sources and conditions.
SPECIFICATIONS SIDE BY SIDE4 topics
SELECTED TOPIC
01 / 04
Interface and version
Check the exact configuration and source conditions for your use.
Samsung 990 EVOPCIe 4.0 x4 or PCIe 5.0 x2; NVMe
Manufacturer specification · Host support and available lanes determine operation; interface generation is not an application-performance result.
Check the connection before the capacity. M.2 NVMe modules and 2.5-inch SATA drives are not interchangeable. Check the host’s protocol, slot or bay, power connection and clearance. Rated speeds use different test systems; we do not turn them into a speed score or overall winner.
Samsung 990 EVOUp to 5000 MB/s sequential read; up to 4200 MB/s cached sequential write
Samsung 860 EVO SATA M.2 SSD 2TBUp to 550 MB/s Sequential Read * Performance may vary based on system hardware & configuration (Sequential Read); Up to 520 MB/s Sequential Write * Performance may vary based on system hardware & configuration (Sequential Write); Up to 97,000 IOPS Random Read * Performance may vary based on system hardware & configuration (Random Read (4 KB, QD32)); Up to 88,000 IOPS Random Write * Performance may vary based on system hardware & configuration (Random Write (4KB, QD32)); Up to 10,000 IOPS Random Read * Performance may vary based on system hardware & configuration (Random Read (4 KB, QD1)); Up to 42,000 IOPS Random Write * Performance may vary based on system hardware & configuration (Random Write (4 KB, QD1))
Sources
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.
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.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
DRAM cache present
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBNot verified
Sources
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.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
DRAM cache capacity
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBNot verified
Sources
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.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Included cloning software
Samsung 990 EVOSamsung Magician data migration
Samsung 860 EVO SATA M.2 SSD 2TBNot verified
Sources
Samsung 990 EVO
Manufacturer specification · The UK feature page advertises data migration through Samsung Magician. Check software version, operating-system support and migration requirements.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Drive management software
Samsung 990 EVOSamsung Magician
Samsung 860 EVO SATA M.2 SSD 2TBNot verified
Sources
Samsung 990 EVO
Manufacturer specification · Current feature block lists migration, drive health and firmware updates. Check the current software version and its requirements.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Write-buffer technology
Samsung 990 EVOIntelligent TurboWrite
Samsung 860 EVO SATA M.2 SSD 2TBNot verified
Sources
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 sequential read
Samsung 990 EVO5000 MB/s
Samsung 860 EVO SATA M.2 SSD 2TBNot verified
Sources
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.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Rated sequential write
Samsung 990 EVO4200 MB/s
Samsung 860 EVO SATA M.2 SSD 2TBNot verified
Sources
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.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Device sleep support
Samsung 990 EVOYes
Samsung 860 EVO SATA M.2 SSD 2TBNot verified
Sources
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.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Published power conditions
Samsung 990 EVO5.5 W active read; 4.7 W active write; 60 mW PS3 idle; 5 mW PS4 sleep
Samsung 860 EVO SATA M.2 SSD 2TBNot verified
Sources
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.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Environment — Operating Temperature
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TB0 - 70 ℃ Operating Temperature
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Environment — Power Consumption
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TB*Average: 3.0 W *Maximum: 4.5 W (Burst mode)* Actual power consumption may vary depending on system hardware & configuration
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Environment — Reliability (MTBF)
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TB1.5 Million Hours Reliability (MTBF)
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Environment — Shock
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TB1,500 G & 0.5 ms (Half sine)
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
General Feature — Application
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBClient PCs
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
General Feature — Cache Memory
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBSamsung 2 GB Low Power DDR4 SDRAM
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
General Feature — Capacity
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TB2,000 GB (1 GB=1 Billion byte by IDEMA) * Actual usable capacity may be less (due to formatting, partitioning, operating system, applications or otherwise)
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
General Feature — Controller
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBSamsung MJX Controller
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
General Feature — Dimension (WxHxD)
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBMax 80.15 x Max 22.15 x Max.2.38 (mm)
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
General Feature — Form Factor
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBM.2 2280
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
General Feature — Interface
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBSATA 6 Gb/s Interface, compatible with SATA 3 Gb/s & SATA 1.5 Gb/s interface
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
General Feature — NAND Type
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBSamsung V-NAND 3bit MLC
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
General Feature — Weight
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBMax. 8g
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Installation Kit
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBNot Available
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Performance — Random Read (4 KB, QD1)
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBUp to 10,000 IOPS Random Read * Performance may vary based on system hardware & configuration
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Performance — Random Read (4 KB, QD32)
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBUp to 97,000 IOPS Random Read * Performance may vary based on system hardware & configuration
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Performance — Random Write (4 KB, QD1)
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBUp to 42,000 IOPS Random Write * Performance may vary based on system hardware & configuration
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Performance — Random Write (4KB, QD32)
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBUp to 88,000 IOPS Random Write * Performance may vary based on system hardware & configuration
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Performance — Sequential Read
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBUp to 550 MB/s Sequential Read * Performance may vary based on system hardware & configuration
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Performance — Sequential Write
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBUp to 520 MB/s Sequential Write * Performance may vary based on system hardware & configuration
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Software — Management SW
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBMagician Software for SSD management
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Special Feature — Device Sleep Mode Support
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBYes
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Special Feature — Encryption Support
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBAES 256-bit Encryption (Class 0)TCG/Opal IEEE1667 (Encrypted drive)
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Special Feature — GC (Garbage Collection)
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBAuto Garbage Collection Algorithm
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Special Feature — S.M.A.R.T Support
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBS.M.A.R.T Supported
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Special Feature — TRIM Support
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBTRIM Supported
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Special Feature — WWN Support
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TBWorld Wide Name supported
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Evidence is missing or conflicting on at least one side. This is not a verified difference.
Warranty
Samsung 990 EVONot verified
Samsung 860 EVO SATA M.2 SSD 2TB5 Years Limited Warranty or 1,200 TBW Limited Warranty
Sources
Samsung 990 EVO
No source recorded for this side.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
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 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.
Published performance and battery figures are manufacturer claims. Actual results depend on configuration, settings and use; an unlisted feature or condition remains unknown.
Manufacturer specification · Manufacturer capacity: 2,000 GB (1 GB=1 Billion byte by IDEMA) * Actual usable capacity may be less (due to formatting, partitioning, operating system, applications or otherwise). Decimal TB converted to GB where needed; formatted usable capacity is lower.
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.
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.
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
2,000 GB (1 GB=1 Billion byte by IDEMA) * Actual usable capacity may be less (due to formatting, partitioning, operating system, applications or otherwise)
General Feature — Form FactorSources
Samsung 990 EVO
No source recorded.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
SATA 6 Gb/s Interface, compatible with SATA 3 Gb/s & SATA 1.5 Gb/s interface
General Feature — Dimension (WxHxD)Sources
Samsung 990 EVO
No source recorded.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
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.
Up to 5000 MB/s sequential read; up to 4200 MB/s cached sequential write
Up to 550 MB/s Sequential Read * Performance may vary based on system hardware & configuration (Sequential Read); Up to 520 MB/s Sequential Write * Performance may vary based on system hardware & configuration (Sequential Write); Up to 97,000 IOPS Random Read * Performance may vary based on system hardware & configuration (Random Read (4 KB, QD32)); Up to 88,000 IOPS Random Write * Performance may vary based on system hardware & configuration (Random Write (4KB, QD32)); Up to 10,000 IOPS Random Read * Performance may vary based on system hardware & configuration (Random Read (4 KB, QD1)); Up to 42,000 IOPS Random Write * Performance may vary based on system hardware & configuration (Random Write (4 KB, QD1))
Rated sequential readSources
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.
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.
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Up to 550 MB/s Sequential Read * Performance may vary based on system hardware & configuration
Performance — Sequential WriteSources
Samsung 990 EVO
No source recorded.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Up to 520 MB/s Sequential Write * Performance may vary based on system hardware & configuration
Performance — Random Read (4 KB, QD32)Sources
Samsung 990 EVO
No source recorded.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Up to 97,000 IOPS Random Read * Performance may vary based on system hardware & configuration
Performance — Random Write (4KB, QD32)Sources
Samsung 990 EVO
No source recorded.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Up to 88,000 IOPS Random Write * Performance may vary based on system hardware & configuration
Performance — Random Read (4 KB, QD1)Sources
Samsung 990 EVO
No source recorded.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Up to 10,000 IOPS Random Read * Performance may vary based on system hardware & configuration
Performance — Random Write (4 KB, QD1)Sources
Samsung 990 EVO
No source recorded.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
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.
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Manufacturer specification · Current feature block lists migration, drive health and firmware updates. Check the current software version and its requirements.
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.
Manufacturer specification · The UK feature page advertises data migration through Samsung Magician. Check software version, operating-system support and migration requirements.
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
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.
Special Feature — Device Sleep Mode SupportSources
Samsung 990 EVO
No source recorded.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
*Average: 3.0 W *Maximum: 4.5 W (Burst mode)* Actual power consumption may vary depending on system hardware & configuration
Environment — Operating TemperatureSources
Samsung 990 EVO
No source recorded.
Samsung 860 EVO SATA M.2 SSD 2TB
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
Manufacturer specification · Manufacturer claim in the exact MZ-N6E2T0BW specification. Source wording, unit and scope retained; unlisted conditions remain unknown.
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 presentSources
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 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.
Each record represents an explicitly checked model and configuration. Original import: 5 Sept 2026; this is not its verification date. This is not a list of current offers or a popularity ranking.