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Product comparison · 2 internal hard drives

Samsung 20GB HDD vs Samsung 320GB Serial ATA II HDD, Retail Kit

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  • 16specifications compared
  • 13differ
  • 3identical
  • 17known for one product only

Key differences

  • HDD capacity
    • 20 GB
    • 320 GB
  • HDD speed
    • 4200 RPM
    • 7200 RPM
  • HDD size
    • 1.8"
    • 3.5"
  • Interface
    • Ultra-ATA/66
    • Serial ATA II
  • Storage drive buffer size
    • 2 MB
    • 16 MB
  • Full stroke seek time
    • 26 ms
    • 18 ms
  • Track to track seek time
    • 3 ms
    • 0.8 ms
  • Average latency
    • 7.14 ms
    • 4.17 ms

Side by side

Differences highlightedShow differences only
33 specifications
A

Samsung

20GB HDDView product
B

Samsung

320GB Serial ATA II HDD, Retail KitView product
Features8 differ
HDD capacityDiffers20 GB320 GB
HDD speedDiffers4200 RPM7200 RPM
HDD sizeDiffers1.8"3.5"
InterfaceDiffersUltra-ATA/66Serial ATA II
TypeKnown for oneHDD
Storage drive buffer sizeDiffers2 MB16 MB
Full stroke seek timeDiffers26 ms18 ms
Track to track seek timeDiffers3 ms0.8 ms
Average latencyDiffers7.14 ms4.17 ms
Bytes per sector512512
Start/stop cyclesKnown for one600000
Average seek timeKnown for one8.9 ms
Mean time between failures (MTBF)Known for one600000 h
Power2 differ
Power consumption (typical)Differs0.65 W8 W
Power consumption (standby)Known for one0.3 W
Operating voltageDiffers3.3 V5 / 12 V
Operational conditions2 differ
Operating temperature (T-T)Differs5 - 60 °C0 - 60 °C
Storage temperature (T-T)Differs-20 - 85 °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-400 - 15000 m
Operating shockKnown for one63 G
Non-operating shockKnown for one350 G
Weight & dimensionsidentical
WidthKnown for one54 mm
DepthKnown for one71 mm
HeightKnown for one5 mm
WeightKnown for one48 g
Other features1 differ
Drive ready timeDiffers2 s10 s
HDD transfer rateKnown for one300 Mbit/s
Power requirementsKnown for one+5V; +12V
InternalKnown for oneYes
Acoustic pressure emissionsKnown for one2.4 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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