Product comparison · 2 internal hard drives

Seagate 160GB 3.5" SATA vs Seagate 40GB 3.5" SATA

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  • 32specifications compared
  • 13differ
  • 19identical
  • 1known for one product only

Key differences

The Seagate 160GB 3.5" SATA has 20 GB more HDD capacity than the Seagate 40GB 3.5" SATA (60 GB vs 40 GB). The Seagate 160GB 3.5" SATA has 1,800 RPM more HDD speed than the Seagate 40GB 3.5" SATA (7200 RPM vs 5400 RPM). The Seagate 160GB 3.5" SATA has 1 more HDD heads than the Seagate 40GB 3.5" SATA (3 vs 2).

  • HDD capacity
    • 160GB 3.5" SATA:60 GB
    • 40GB 3.5" SATA:40 GB
  • HDD speed
    • 160GB 3.5" SATA:7200 RPM
    • 40GB 3.5" SATA:5400 RPM
  • HDD number of heads
    • 160GB 3.5" SATA:3
    • 40GB 3.5" SATA:2
  • Average seek time
    • 160GB 3.5" SATA:10.5 ms
    • 40GB 3.5" SATA:12.5 ms
  • Average latency
    • 160GB 3.5" SATA:4.2 ms
    • 40GB 3.5" SATA:5.6 ms
  • Power consumption (standby)
    • 160GB 3.5" SATA:0.28 W
    • 40GB 3.5" SATA:0.26 W
  • Power consumption (idle)
    • 160GB 3.5" SATA:0.95 W
    • 40GB 3.5" SATA:0.8 W
  • Power consumption (read)
    • 160GB 3.5" SATA:2.2 W
    • 40GB 3.5" SATA:1.9 W

Side by side

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Comparison of 160GB 3.5" SATA, 40GB 3.5" SATA
33 specifications
Features5 differ
HDD capacityDiffers60 GB40 GB
HDD speedDiffers7200 RPM5400 RPM
HDD size2.5"2.5"
InterfaceSerial ATASerial ATA
TypeHDDHDD
Component forLaptopLaptop
Storage drive buffer size8 MB8 MB
HDD number of cylindersKnown for one16383Unknown — not stated by the source
HDD number of headsDiffers32
Average seek timeDiffers10.5 ms12.5 ms
Average latencyDiffers4.2 ms5.6 ms
Bytes per sector512512
Power5 differ
Power consumption (standby)Differs0.28 W0.26 W
Power consumption (idle)Differs0.95 W0.8 W
Power consumption (read)Differs2.2 W1.9 W
Power consumption (write)Differs2.2 W2.3 W
Operating voltage5 V5 V
Start-up currentDiffers1.28 A1.1 A
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 altitude-60.96 - 3048 m-60.96 - 3048 m
Non-operating altitude-60.96 - 12192 m-60.96 - 12192 m
Operating shock250 G250 G
Non-operating shockDiffers800 G900 G
Weight & dimensions2 differ
Width69.8 mm69.8 mm
DepthDiffers100.2 mm100.5 mm
Height9.5 mm9.5 mm
WeightDiffers115 g100 g
Other featuresidentical
Mac compatibilityNoNo
Windows operating systems supportedYesYes
Linux operating systems supportedYesYes

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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