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Product comparison · 2 internal hard drives

Samsung 20GB HDD vs Samsung 500GB Serial ATA II HDD, Retail

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  • 20specifications compared
  • 17differ
  • 3identical
  • 12known for one product only

Key differences

  • HDD capacity
    • 20 GB
    • 500 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
32 specifications
A

Samsung

20GB HDDView product
B

Samsung

500GB Serial ATA II HDD, RetailView product
Features9 differ
HDD capacityDiffers20 GB500 GB
HDD speedDiffers4200 RPM7200 RPM
HDD sizeDiffers1.8"3.5"
InterfaceDiffersUltra-ATA/66Serial ATA II
Storage drive buffer sizeDiffers2 MB16 MB
Full stroke seek timeDiffers26 ms18 ms
Track to track seek timeDiffers3 ms0.8 ms
Average seek timeKnown for one8.9 ms
Average latencyDiffers7.14 ms4.17 ms
Bytes per sector512512
Start/stop cyclesDiffers60000050000
Mean time between failures (MTBF)Known for one600000 h
TypeKnown for oneHDD
Power3 differ
Power consumption (typical)Differs0.65 W8 W
Power consumption (standby)Differs0.3 W1.2 W
Operating voltageDiffers3.3 V5 / 12 V
Operational conditions4 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 altitudeDiffers-300 - 3000 m0 - 3000 m
Non-operating altitudeDiffers-400 - 15000 m0 - 12000 m
Operating shockKnown for one63 G
Non-operating shockKnown for one300 G
Other features1 differ
Power requirementsKnown for one+5V; +12V
Drive ready timeDiffers2 s10 s
InternalKnown for oneYes
Acoustic pressure emissionsKnown for one2.4 dB
Weight & dimensionsidentical
WidthKnown for one54 mm
DepthKnown for one71 mm
HeightKnown for one5 mm
WeightKnown for one48 g

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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