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Product comparison · 2 internal hard drives

Samsung 120GB HDD vs Samsung 400GB Ultra-ATA/133 HDD, Retail

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  • 21specifications compared
  • 16differ
  • 5identical
  • 11known for one product only

Key differences

  • HDD capacity
    • 120 GB
    • 400 GB
  • HDD speed
    • 5400 RPM
    • 7200 RPM
  • HDD size
    • 2.5"
    • 3.5"
  • Interface
    • Serial ATA
    • Ultra-ATA/133
  • Full stroke seek time
    • 22 ms
    • 18 ms
  • Track to track seek time
    • 2 ms
    • 0.8 ms
  • Average seek time
    • 12 ms
    • 8.9 ms
  • Average latency
    • 5.6 ms
    • 4.17 ms

Side by side

Differences highlightedShow differences only
32 specifications
A

Samsung

120GB HDDView product
B

Samsung

400GB Ultra-ATA/133 HDD, RetailView product
Features9 differ
HDD capacityDiffers120 GB400 GB
HDD speedDiffers5400 RPM7200 RPM
HDD sizeDiffers2.5"3.5"
InterfaceDiffersSerial ATAUltra-ATA/133
Full stroke seek timeDiffers22 ms18 ms
Track to track seek timeDiffers2 ms0.8 ms
Average seek timeDiffers12 ms8.9 ms
Average latencyDiffers5.6 ms4.17 ms
Start/stop cyclesKnown for one50000
Mean time between failures (MTBF)Differs330000 h600000 h
TypeKnown for oneHDD
Power3 differ
Power consumption (typical)Differs4.5 W9.6 W
Power consumption (standby)Differs0.25 W0.45 W
Operating voltageDiffers5 V5 / 12 V
Power consumption (PowerSave)Known for one0.25 W
Operational conditions3 differ
Operating temperature (T-T)Differs5 - 55 °C0 - 60 °C
Operating shockDiffers325 G63 G
Non-operating shockDiffers1000 G300 G
Weight & dimensionsidentical
WidthKnown for one147 mm
DepthKnown for one101.6 mm
HeightKnown for one26.1 mm
WeightKnown for one651 g
Other features1 differ
Power requirementsKnown for one+5V; +12V
Drive device, transfer rateKnown for one133 MB/s
Drive ready timeDiffers4 s10 s
InternalKnown for oneYes
Acoustic pressure emissionsKnown for one2.8 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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