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Product comparison · 2 internal solid state drives

Samsung SM843 120 GB 2.5" Serial ATA III vs Seagate ST400FP0021 internal solid state drive

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  • 7specifications compared
  • 2differ
  • 5identical
  • 14known for one product only

Key differences

  • SSD capacity
    • 120 GB
    • 400 GB
  • Write speed
    • 420 MB/s
    • 450 MB/s

Side by side

Differences highlightedShow differences only
21 specifications
A

Samsung

SM843 120 GB 2.5" Serial ATA III

Model SM843

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B

Seagate

ST400FP0021 internal solid state drive

Model ST400FP0021

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Features2 differ
SSD capacityDiffers120 GB400 GB
SSD form factor2.5"2.5"
InterfaceSerial ATA IIISerial ATA III
Memory typeKnown for oneMLC
Data transfer rate6 Gbit/s6 Gbit/s
Read speed520 MB/s520 MB/s
Write speedDiffers420 MB/s450 MB/s
Random read (4KB)Known for one85000 IOPS
Random write (4KB)Known for one30000 IOPS
S.M.A.R.T. supportKnown for oneYes
Poweridentical
Power consumption (standby)Known for one2.8 W
Power consumption (idle)Known for one1.25 W
Power consumptionKnown for one500 mA
Weight & dimensionsidentical
WidthKnown for one70.1 mm
DepthKnown for one100.5 mm
Height7 mm7 mm
WeightKnown for one100 g
Operational conditionsidentical
Operating temperature (T-T)Known for one0 - 70 °C
Storage temperature (T-T)Known for one-40 - 75 °C
Other featuresidentical
InternalKnown for oneYes
Product colourKnown for oneBlack

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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