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Product comparison · 2 internal hard drives

Samsung 30GB Ultra-ATA/66 HDD vs Samsung 40GB Ultra-ATA/133 HDD

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  • 19specifications compared
  • 16differ
  • 3identical
  • 11known for one product only

Key differences

The Samsung 40GB Ultra-ATA/133 HDD has 10 GB more HDD capacity than the Samsung 30GB Ultra-ATA/66 HDD (40 GB vs 30 GB). The Samsung 40GB Ultra-ATA/133 HDD has 3,000 RPM more HDD speed than the Samsung 30GB Ultra-ATA/66 HDD (7200 RPM vs 4200 RPM). The Samsung 40GB Ultra-ATA/133 HDD has 1.7" more HDD size than the Samsung 30GB Ultra-ATA/66 HDD (3.5" vs 1.8"). Interface: Ultra-ATA/66 on the Samsung 30GB Ultra-ATA/66 HDD, Ultra-ATA/133 on the Samsung 40GB Ultra-ATA/133 HDD. Operating voltage: 3.3 V on the Samsung 30GB Ultra-ATA/66 HDD, 5 / 12 V on the Samsung 40GB Ultra-ATA/133 HDD.

  • HDD capacity
    • 30 GB
    • 40 GB
  • HDD speed
    • 4200 RPM
    • 7200 RPM
  • HDD size
    • 1.8"
    • 3.5"
  • Interface
    • Ultra-ATA/66
    • Ultra-ATA/133
  • Full stroke seek time
    • 26 ms
    • 18 ms
  • Track to track seek time
    • 3 ms
    • 0.8 ms
  • Average seek time
    • 15 ms
    • 8.9 ms
  • Average latency
    • 7.14 ms
    • 4.17 ms

Side by side

Differences highlightedShow differences only
30 specifications
A

Samsung

30GB Ultra-ATA/66 HDDView product
B

Samsung

40GB Ultra-ATA/133 HDDView product
Features9 differ
HDD capacityDiffers30 GB40 GB
HDD speedDiffers4200 RPM7200 RPM
HDD sizeDiffers1.8"3.5"
InterfaceDiffersUltra-ATA/66Ultra-ATA/133
Full stroke seek timeDiffers26 ms18 ms
Track to track seek timeDiffers3 ms0.8 ms
Average seek timeDiffers15 ms8.9 ms
Average latencyDiffers7.14 ms4.17 ms
Start/stop cyclesDiffers60000050000
Mean time between failures (MTBF)Known for one600000 h
Power3 differ
Power consumption (typical)Differs0.65 W7 W
Power consumption (standby)Differs0.3 W1.5 W
Operating voltageDiffers3.3 V5 / 12 V
Operational conditionsidentical
Operating temperature (T-T)Known for one5 - 60 °C
Storage temperature (T-T)Known for one-20 - 85 °C
Operating relative humidity (H-H)Known for one8 - 90%
Storage relative humidity (H-H)Known for one8 - 95%
Operating altitudeKnown for one-300 - 3000 m
Non-operating altitudeKnown for one-400 - 15000 m
Weight & dimensions4 differ
WidthDiffers54 mm146.1 mm
DepthDiffers71 mm101.6 mm
HeightDiffers5 mm25.4 mm
WeightDiffers48 g631 g
Other featuresidentical
Power requirementsKnown for one+3.3V
Disks included quantityKnown for one1 pc(s)
Drive ready timeKnown for one5 s
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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