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Product comparison · 2 internal hard drives

Samsung 250GB Serial ATA II HDD vs Samsung 40GB HDD

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  • 19specifications compared
  • 5differ
  • 14identical
  • 18known for one product only

Key differences

The Samsung 250GB Serial ATA II HDD has 210 GB more HDD capacity than the Samsung 40GB HDD (250 GB vs 40 GB). The Samsung 250GB Serial ATA II HDD has 100,000 h more mean time between failures (MTBF) than the Samsung 40GB HDD (600000 h vs 500000 h). The Samsung 250GB Serial ATA II HDD has 1.7 W more power consumption (typical) than the Samsung 40GB HDD (9.5 W vs 7.8 W). Non-operating altitude: 12000 on the Samsung 250GB Serial ATA II HDD, -304.8 - 12192 m on the Samsung 40GB HDD.

  • HDD capacity
    • 250 GB
    • 40 GB
  • Mean time between failures (MTBF)
    • 600000 h
    • 500000 h
  • Power consumption (typical)
    • 9.5 W
    • 7.8 W
  • Power consumption (standby)
    • 1.5 W
    • 0.7 W
  • Non-operating altitude
    • 12000
    • -304.8 - 12192 m

Side by side

Differences highlightedShow differences only
37 specifications
A

Samsung

250GB Serial ATA II HDDView product
B

Samsung

40GB HDDView product
Features2 differ
HDD capacityDiffers250 GB40 GB
HDD speed7200 RPM7200 RPM
HDD sizeKnown for one3.5"
InterfaceSerial ATA IISerial ATA II
TypeKnown for oneHDD
Storage drive buffer size8 MB8 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
Mean time between failures (MTBF)Differs600000 h500000 h
Power2 differ
Power consumption (typical)Differs9.5 W7.8 W
Power consumption (standby)Differs1.5 W0.7 W
Power consumption (PowerSave)Known for one0.7 W
Power consumption (idle)Known for one6.8 W
Power consumption (read)Known for one8 W
Power consumption (write)Known for one8 W
Operating voltageKnown for one5 / 12 V
Operational conditions1 differ
Operating temperature (T-T)0 - 60 °C0 - 60 °C
Storage temperature (T-T)-40 - 70 °C-40 - 70 °C
Operating relative humidity (H-H)5 - 90%5 - 90%
Storage relative humidity (H-H)5 - 95%5 - 95%
Operating vibrationKnown for one1.5 G
Non-operating vibrationKnown for one8 G
Operating altitudeKnown for one-304.8 - 3048 m
Non-operating altitudeDiffers12000-304.8 - 12192 m
Operating shock63 G63 G
Non-operating shock350 G350 G
Weight & dimensionsidentical
WidthKnown for one101.6 mm
DepthKnown for one146.1 mm
HeightKnown for one25.4 mm
WeightKnown for one648 g
Other featuresidentical
Special featuresKnown for oneRoHS NoiseGuard SilentSeek
Power requirementsKnown for one+5V±5%;+12V±10%
Drive ready timeKnown for one7 s
InternalKnown for oneYes

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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