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Product comparison · 2 internal hard drives

Lenovo ThinkPad 250GB 5400rpm Serial ATA Hard drive vs Seagate Cheetah 15K.5 147GB FC 20pk

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  • 11specifications compared
  • 9differ
  • 2identical
  • 19known for one product only

Key differences

The Lenovo ThinkPad 250GB 5400rpm Serial ATA Hard drive has 103.2 GB more HDD capacity than the Seagate Cheetah 15K.5 147GB FC 20pk (250 GB vs 146.8 GB). The Seagate Cheetah 15K.5 147GB FC 20pk has 9,600 RPM more HDD speed than the Lenovo ThinkPad 250GB 5400rpm Serial ATA Hard drive (15000 RPM vs 5400 RPM). The Lenovo ThinkPad 250GB 5400rpm Serial ATA Hard drive has 7.5 ms more read seek time than the Seagate Cheetah 15K.5 147GB FC 20pk (11 ms vs 3.5 ms). Interface: Serial ATA on the Lenovo ThinkPad 250GB 5400rpm Serial ATA Hard drive, Fibre Channel on the Seagate Cheetah 15K.5 147GB FC 20pk.

  • HDD capacity
    • 250 GB
    • 146.8 GB
  • HDD speed
    • 5400 RPM
    • 15000 RPM
  • Interface
    • Serial ATA
    • Fibre Channel
  • Read seek time
    • 11 ms
    • 3.5 ms
  • Write seek time
    • 13 ms
    • 4 ms
  • Average latency
    • 5.5 ms
    • 2 ms
  • Operating shock
    • 1000 G
    • 60 G
  • Non-operating shock
    • 350 G
    • 250 G

Side by side

Differences highlightedShow differences only
30 specifications
A

Lenovo

ThinkPad 250GB 5400rpm Serial ATA Hard driveView product
B

Seagate

Cheetah 15K.5 147GB FC 20pkView product
Features6 differ
HDD capacityDiffers250 GB146.8 GB
HDD speedDiffers5400 RPM15000 RPM
HDD sizeKnown for one3.5"
InterfaceDiffersSerial ATAFibre Channel
Component forKnown for oneServer/workstation
Storage drive buffer sizeKnown for one16 MB
HDD number of heads44
Read seek timeDiffers11 ms3.5 ms
Write seek timeDiffers13 ms4 ms
Average latencyDiffers5.5 ms2 ms
Bytes per sectorKnown for one512
Poweridentical
Operating voltageKnown for one5 / 12 V
Operational conditions2 differ
Operating temperature (T-T)Known for one5 - 55 °C
Storage temperature (T-T)Known for one-40 - 70 °C
Operating shockDiffers1000 G60 G
Non-operating shockDiffers350 G250 G
Weight & dimensions1 differ
WidthKnown for one101.6 mm
DepthKnown for one46 mm
HeightKnown for one25.4 mm
WeightDiffers102 g771 g
Other featuresidentical
Drive device, transfer rateKnown for one400 MB/s
InternalYesYes
Compatible productsKnown for onePCs
Acoustic pressure emissionsKnown for one32 dB
Dimensions (WxDxH)Known for one69.85 x 100.2 x 9.5 mm
Compatible operating systemsKnown for oneMicrosoft Windows 2000 Windows XP Windows Vista
Data transfer rateKnown for one1.5 Gbit/s
Mac compatibilityKnown for oneNo
Maximum data transfer rateKnown for one665 Mbit/s
CertificationKnown for oneCE, UL, MIC, TUV, BSMI, C-Tick, CUL, RoHS

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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