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Product comparison · 2 internal solid state drives

ADATA ISSS31D 1 TB 2.5" Serial ATA III 3D TLC vs Samsung 990 SSD PCIe

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  • 17specifications compared
  • 12differ
  • 5identical
  • 22known for one product only

Key differences

The Samsung 990 SSD PCIe has 1 TB more SSD capacity than the ADATA ISSS31D 1 TB 2.5" Serial ATA III 3D TLC (2 TB vs 1 TB). The Samsung 990 SSD PCIe has 6,690 MB/s more read speed than the ADATA ISSS31D 1 TB 2.5" Serial ATA III 3D TLC (7250 MB/s vs 560 MB/s). The Samsung 990 SSD PCIe has 5,970 MB/s more write speed than the ADATA ISSS31D 1 TB 2.5" Serial ATA III 3D TLC (6450 MB/s vs 480 MB/s). Only the Samsung 990 SSD PCIe has NVMe. Only the Samsung 990 SSD PCIe has hardware encryption.

  • SSD capacity
    • 1 TB
    • 2 TB
  • SSD form factor
    • 2.5"
    • M.2
  • Interface
    • Serial ATA III
    • PCI Express 4.0
  • NVMe
    • No
    • Yes
  • Memory type
    • 3D TLC
    • V-NAND
  • Component for
    • Server/workstation
    • PC
  • Hardware encryption
    • No
    • Yes
  • Read speed
    • 560 MB/s
    • 7250 MB/s

Side by side

Differences highlightedShow differences only
39 specifications
A

ADATA

ISSS31D 1 TB 2.5" Serial ATA III 3D TLC

Model ISSS31D

View product
B

Samsung

990 SSD PCIe

Model 990

View product
Features9 differ
SSD capacityDiffers1 TB2 TB
SSD form factorDiffers2.5"M.2
InterfaceDiffersSerial ATA IIIPCI Express 4.0
NVMeDiffersNoYes
NVMe versionKnown for one2.0
Memory typeDiffers3D TLCV-NAND
Component forDiffersServer/workstationPC
Hardware encryptionDiffersNoYes
Security algorithmsKnown for one256-bit AES, TCG Opal 2.0
M.2 SSD sizeKnown for one2280 (22 x 80 mm)
Read speedDiffers560 MB/s7250 MB/s
Write speedDiffers480 MB/s6450 MB/s
Random read (4KB)Known for one850000 IOPS
Random write (4KB)Known for one1200000 IOPS
PCI Express interface data lanesKnown for onex4
DevSlp (device sleep) supportKnown for oneYes
PCI Express CEM revisionKnown for one4.0
Mean time between failures (MTBF)Known for one1500000 h
ECCKnown for oneYes
End-to-End Data ProtectionKnown for oneYes
Protection featuresKnown for oneElectrostatic Discharge (ESD) protection
Use conditionsKnown for oneAutomotive
Poweridentical
Power consumption (read)Known for one4.3 W
Power consumption (write)Known for one3.8 W
Power consumption (idle)Known for one0.055 W
Power consumption DevSlp (device sleep)Known for one3 mW
Power consumption (max)Known for one2.2 W
Weight & dimensions3 differ
WidthDiffers70 mm80.2 mm
DepthDiffers100 mm2.38 mm
HeightDiffers7 mm22.1 mm
Packaging dataidentical
Package typeKnown for oneBox
Operational conditionsidentical
Operating relative humidity (H-H)Known for one5 - 95%
Vibration resistanceKnown for one20 G
Brand-specific featuresidentical
Brand specific technologiesKnown for oneSLC Caching

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