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Product comparison · 2 internal hard drives

Samsung 120GB Ultra-ATA/100 HDD vs Samsung 320GB Serial ATA II HDD, 20-pk

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  • 22specifications compared
  • 18differ
  • 4identical
  • 5known for one product only

Key differences

  • HDD capacity
    • 120 GB
    • 320 GB
  • HDD speed
    • 5400 RPM
    • 7200 RPM
  • HDD size
    • 2.5"
    • 3.5"
  • Interface
    • Ultra-ATA/100
    • Serial ATA II
  • Storage drive buffer size
    • 8 MB
    • 16 MB
  • 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

Side by side

Differences highlightedShow differences only
27 specifications
A

Samsung

120GB Ultra-ATA/100 HDDView product
B

Samsung

320GB Serial ATA II HDD, 20-pkView product
Features10 differ
HDD capacityDiffers120 GB320 GB
HDD speedDiffers5400 RPM7200 RPM
HDD sizeDiffers2.5"3.5"
InterfaceDiffersUltra-ATA/100Serial ATA II
Storage drive buffer sizeDiffers8 MB16 MB
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
Mean time between failures (MTBF)Differs330000 h600000 h
Bytes per sectorKnown for one512
Power2 differ
Power consumption (typical)Differs2 W8 W
Power consumption (standby)Known for one0.25 W
Operating voltageDiffers5 V5 / 12 V
Operational conditions3 differ
Operating temperature (T-T)Differs5 - 55 °C0 - 60 °C
Operating altitudeKnown for one-300 - 3000 m
Non-operating altitudeKnown for one-300 - 15000 m
Operating shockDiffers325 G63 G
Non-operating shockDiffers1000 G350 G
Other features3 differ
Power requirementsDiffers+5V+5V; +12V
Drive ready timeDiffers4 s10 s
Acoustic pressure emissionsDiffers2.3 dB2.4 dB
HDD transfer rateKnown for one300 Mbit/s

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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