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Product comparison · 2 internal solid state drives

Samsung 990 SSD PCIe vs Samsung MZ-7PD512BW 512 GB 2.5" Serial ATA III

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  • 21specifications compared
  • 14differ
  • 7identical
  • 23known for one product only

Key differences

  • SSD capacity
    • 2 TB
    • 512 GB
  • SSD form factor
    • M.2
    • 2.5"
  • Interface
    • PCI Express 4.0
    • Serial ATA III
  • Security algorithms
    • 256-bit AES, TCG Opal 2.0
    • 256-bit AES
  • Read speed
    • 7250 MB/s
    • 540 MB/s
  • Write speed
    • 6450 MB/s
    • 520 MB/s
  • Random read (4KB)
    • 850000 IOPS
    • 9900 IOPS
  • Random write (4KB)
    • 1200000 IOPS
    • 31000 IOPS

Side by side

Differences highlightedShow differences only
44 specifications
A

Samsung

990 SSD PCIe

Model 990

View product
B

Samsung

MZ-7PD512BW 512 GB 2.5" Serial ATA III

Model MZ-7PD512BW

View product
Features8 differ
SSD capacityDiffers2 TB512 GB
SSD form factorDiffersM.22.5"
InterfaceDiffersPCI Express 4.0Serial ATA III
Component forPCPC
Hardware encryptionYesYes
Security algorithmsDiffers256-bit AES, TCG Opal 2.0256-bit AES
Read speedDiffers7250 MB/s540 MB/s
Write speedDiffers6450 MB/s520 MB/s
Random read (4KB)Differs850000 IOPS9900 IOPS
Random write (4KB)Differs1200000 IOPS31000 IOPS
Random read (100% span)Known for one100000 IOPS
Random write (100% span)Known for one90000 IOPS
S.M.A.R.T. supportYesYes
TRIM supportYesYes
Mean time between failures (MTBF)1500000 h1500000 h
Windows operating systems supportedKnown for oneYes
Mac operating systems supportedKnown for oneYes
Linux operating systems supportedKnown for oneYes
NVMeKnown for oneYes
NVMe versionKnown for one2.0
Memory typeKnown for oneV-NAND
M.2 SSD sizeKnown for one2280 (22 x 80 mm)
PCI Express interface data lanesKnown for onex4
DevSlp (device sleep) supportKnown for oneYes
PCI Express CEM revisionKnown for one4.0
Power3 differ
Operating voltageDiffers3.3 V5 V
Power consumption (read)Differs4.3 W15 W
Power consumption (write)Differs3.8 W15 W
Power consumption (idle)Known for one0.055 W
Power consumption DevSlp (device sleep)Known for one3 mW
Weight & dimensions3 differ
WidthDiffers80.2 mm100 mm
DepthDiffers2.38 mm6.8 mm
HeightDiffers22.1 mm69.8 mm
WeightKnown for one54 g
Packaging dataidentical
Quick start guideKnown for oneYes
ManualKnown for oneYes
Bundled softwareKnown for oneWindows 7 (32/64-bit) Windows Vista Windows XP Mac OS X Linux OS
Package typeKnown for oneBox
Operational conditionsidentical
Operating temperature (T-T)0 - 70 °C0 - 70 °C
Operating shock1500 G1500 G
Other featuresidentical
Product colourKnown for oneBlack
InternalKnown for oneYes
Connectivity technologyKnown for oneWired
Operating temperature (T-T)Known for one32 - 140 °F

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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