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Product comparison · 2 internal hard drives

Samsung 120GB Serial ATA I HDD vs Samsung 750GB Serial ATA II HDD

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  • 20specifications compared
  • 15differ
  • 5identical
  • 12known for one product only

Key differences

  • HDD capacity
    • 120 GB
    • 750 GB
  • HDD speed
    • 5400 RPM
    • 7200 RPM
  • HDD size
    • 2.5"
    • 3.5"
  • Interface
    • Serial ATA
    • Serial ATA II
  • Storage drive buffer size
    • 8 MB
    • 16 MB
  • Average seek time
    • 12 ms
    • 8.9 ms
  • Average latency
    • 5.6 ms
    • 4.17 ms
  • Power consumption (typical)
    • 2.1 W
    • 7.9 W

Side by side

Differences highlightedShow differences only
32 specifications
A

Samsung

120GB Serial ATA I HDDView product
B

Samsung

750GB Serial ATA II HDDView product
Features7 differ
HDD capacityDiffers120 GB750 GB
HDD speedDiffers5400 RPM7200 RPM
HDD sizeDiffers2.5"3.5"
InterfaceDiffersSerial ATASerial ATA II
Storage drive buffer sizeDiffers8 MB16 MB
Average seek timeDiffers12 ms8.9 ms
Average latencyDiffers5.6 ms4.17 ms
Bytes per sector512512
Start/stop cyclesKnown for one50000
Full stroke seek timeKnown for one22 ms
Track to track seek timeKnown for one2 ms
Mean time between failures (MTBF)Known for one330000 h
Power3 differ
Power consumption (typical)Differs2.1 W7.9 W
Power consumption (standby)Differs0.25 W0.8 W
Operating voltageDiffers5 V5 / 12 V
Power consumption (PowerSave)Known for one0.2 W
Operational conditions3 differ
Operating temperature (T-T)Differs5 - 55 °C0 - 60 °C
Storage temperature (T-T)-40 - 70 °C-40 - 70 °C
Operating relative humidity (H-H)5 - 90%5 - 90%
Storage relative humidity (H-H)5 - 95%5 - 95%
Operating altitudeKnown for one-300 - 3000 m
Non-operating altitudeKnown for one-300 - 12000 m
Operating shockDiffers325 G70 G
Non-operating shockDiffers1000 G350 G
Weight & dimensionsidentical
WidthKnown for one101.5 mm
DepthKnown for one147 mm
HeightKnown for one26.1 mm
WeightKnown for one640 g
Other features2 differ
Power requirementsDiffers+5V+5V±5%, +12V±10%
Drive ready timeDiffers4 s12 s
InternalYesYes
Acoustic pressure emissionsKnown for one2.2 dB

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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