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Product comparison · 2 internal solid state drives

Samsung 860 PRO vs Samsung PM981 1 TB M.2 PCI Express 3.0 NVMe TLC

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  • 12specifications compared
  • 9differ
  • 3identical
  • 19known for one product only

Key differences

  • SSD capacity
    • 4 TB
    • 1 TB
  • SSD form factor
    • 2.5"
    • M.2
  • Interface
    • Serial ATA III
    • PCI Express 3.0
  • Read speed
    • 560 MB/s
    • 3200 MB/s
  • Write speed
    • 530 MB/s
    • 2400 MB/s
  • Random read (4KB)
    • 100000 IOPS
    • 380000 IOPS
  • Random write (4KB)
    • 90000 IOPS
    • 440000 IOPS
  • Weight
    • 62 g
    • 9 g

Side by side

Differences highlightedShow differences only
31 specifications
A

Samsung

860 PROView product
B

Samsung

PM981 1 TB M.2 PCI Express 3.0 NVMe TLC

Model PM981

View product
Features7 differ
SSD capacityDiffers4 TB1 TB
SSD form factorDiffers2.5"M.2
InterfaceDiffersSerial ATA IIIPCI Express 3.0
Hardware encryptionKnown for oneYes
Data transfer rateKnown for one6 Gbit/s
Read speedDiffers560 MB/s3200 MB/s
Write speedDiffers530 MB/s2400 MB/s
Random read (4KB)Differs100000 IOPS380000 IOPS
Random write (4KB)Differs90000 IOPS440000 IOPS
S.M.A.R.T. supportKnown for oneYes
TRIM supportKnown for oneYes
Password protectionKnown for oneNo
Mean time between failures (MTBF)Known for one1500000 h
NVMeKnown for oneYes
Memory typeKnown for oneTLC
NAND flash typeKnown for oneTLC (Triple Level Cell)
Component forKnown for onePC
Poweridentical
Power consumption (max)Known for one4.5 W
Power consumption (average)Known for one2.2 W
Weight & dimensions1 differ
WidthKnown for one100 mm
DepthKnown for one6.8 mm
HeightKnown for one69.8 mm
WeightDiffers62 g9 g
Operational conditionsidentical
Operating temperature (T-T)0 - 70 °C0 - 70 °C
Storage temperature (T-T)-40 - 85 °C-40 - 85 °C
Storage relative humidity (H-H)5 - 95%5 - 95%
Operating shockKnown for one1500 G
Operating relative humidity (H-H)Known for one5 - 95%
Other features1 differ
Product colourDiffersBlackBlack, Green
Wi-FiKnown for oneNo
Logistics dataidentical
Harmonized System (HS) codeKnown for one84717070

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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