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Product comparison · 2 internal hard drives

Samsung 320GB Ultra-ATA/133 HDD vs Samsung 40GB Ultra-ATA/133 HDD

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  • 21specifications compared
  • 8differ
  • 13identical
  • 9known for one product only

Key differences

  • HDD capacity
    • 320 GB
    • 40 GB
  • Storage drive buffer size
    • 8 MB
    • 2 MB
  • Power consumption (typical)
    • 8 W
    • 7 W
  • Power consumption (standby)
    • 0.45 W
    • 1.5 W
  • Width
    • 147 mm
    • 146.1 mm
  • Height
    • 26.1 mm
    • 25.4 mm
  • Weight
    • 651 g
    • 631 g
  • Drive ready time
    • 10 s
    • 5 s

Side by side

Differences highlightedShow differences only
30 specifications
A

Samsung

320GB Ultra-ATA/133 HDDView product
B

Samsung

40GB Ultra-ATA/133 HDDView product
Features2 differ
HDD capacityDiffers320 GB40 GB
HDD speed7200 RPM7200 RPM
HDD size3.5"3.5"
InterfaceUltra-ATA/133Ultra-ATA/133
Storage drive buffer sizeDiffers8 MB2 MB
Full stroke seek time18 ms18 ms
Track to track seek time0.8 ms0.8 ms
Average seek time8.9 ms8.9 ms
Average latency4.17 ms4.17 ms
Bytes per sector512512
Start/stop cycles5000050000
Mean time between failures (MTBF)600000 h600000 h
Power2 differ
Power consumption (typical)Differs8 W7 W
Power consumption (standby)Differs0.45 W1.5 W
Operating voltage5 / 12 V5 / 12 V
Operational conditionsidentical
Operating temperature (T-T)Known for one0 - 60 °C
Storage temperature (T-T)Known for one-40 - 70 °C
Operating relative humidity (H-H)Known for one5 - 90%
Storage relative humidity (H-H)Known for one5 - 95%
Operating altitudeKnown for one0 - 3000 m
Non-operating altitudeKnown for one0 - 12000 m
Operating shockKnown for one63 G
Non-operating shockKnown for one300 G
Weight & dimensions3 differ
WidthDiffers147 mm146.1 mm
Depth101.6 mm101.6 mm
HeightDiffers26.1 mm25.4 mm
WeightDiffers651 g631 g
Other features1 differ
Drive ready timeDiffers10 s5 s
InternalYesYes
Acoustic pressure emissionsKnown for one2.5 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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