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Product comparison · 2 internal hard drives

Samsung 640GB SATA II HDD vs Seagate 7200.12 320GB

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  • 19specifications compared
  • 9differ
  • 10identical
  • 18known for one product only

Key differences

  • HDD capacity
    • 640 GB
    • 320 GB
  • HDD size
    • 2.5"
    • 3.5"
  • Interface
    • Serial ATA II
    • Serial ATA
  • Average latency
    • 4.17 ms
    • 4.16 ms
  • Operating voltage
    • 5 V
    • 5 / 12 V
  • Operating relative humidity (H-H)
    • 5 - 90%
    • 5 - 95%
  • Width
    • 101.5 mm
    • 101.6 mm
  • Height
    • 26.1 mm
    • 20 mm

Side by side

Differences highlightedShow differences only
37 specifications
A

Samsung

640GB SATA II HDDView product
B

Seagate

7200.12 320GBView product
Features4 differ
HDD capacityDiffers640 GB320 GB
HDD speed7200 RPM7200 RPM
HDD sizeDiffers2.5"3.5"
InterfaceDiffersSerial ATA IISerial ATA
Storage drive buffer size16 MB16 MB
Average seek timeKnown for one8.9 ms
Average latencyDiffers4.17 ms4.16 ms
Bytes per sector512512
Start/stop cyclesKnown for one50000
Mean time between failures (MTBF)Known for one1200000 h
TypeKnown for oneHDD
Read seek timeKnown for one8.5 ms
Write seek timeKnown for one9.5 ms
Power1 differ
Power consumption (standby)Known for one1 W
Power consumption (PowerSave)Known for one1 W
Operating voltageDiffers5 V5 / 12 V
Power consumption (idle)Known for one5 W
Power consumption (read)Known for one6.57 W
Power consumption (write)Known for one6.57 W
Start-up currentKnown for one2 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)Differs5 - 90%5 - 95%
Storage relative humidity (H-H)5 - 95%5 - 95%
Operating altitudeKnown for one-300 - 3000 m
Non-operating altitudeKnown for one-300 - 12000 m
Operating shock70 G70 G
Non-operating shock300 G300 G
Weight & dimensions3 differ
WidthDiffers101.5 mm101.6 mm
Depth147 mm147 mm
HeightDiffers26.1 mm20 mm
WeightDiffers610 g622 g
Other featuresidentical
Dimensions (WxDxH)Known for one101.5 x 147 x 26.1 mm
Drive device, transfer rateKnown for one175 MB/s
Drive ready timeKnown for one12 s
InternalYesYes
Maximum data transfer rateKnown for one300 Mbit/s

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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