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Product comparison · 2 internal hard drives

HP CS/HP HDD/146GB 15k RPM U320 UNI HD/E-ON vs Seagate Momentus 7200.3 250GB

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  • 10specifications compared
  • 8differ
  • 2identical
  • 22known for one product only

Key differences

  • HDD capacity
    • 146 GB
    • 250 GB
  • HDD speed
    • 15000 RPM
    • 7200 RPM
  • Interface
    • Ultra320 SCSI
    • Serial ATA
  • Average latency
    • 4.9 ms
    • 4.17 ms
  • Width
    • 101.6 mm
    • 69.8 mm
  • Height
    • 25.4 mm
    • 9.5 mm
  • Weight
    • 800 g
    • 110 g
  • HDD transfer rate
    • 320 Mbit/s
    • 80 Mbit/s

Side by side

Differences highlightedShow differences only
32 specifications
A

HP

CS/HP HDD/146GB 15k RPM U320 UNI HD/E-ONView product
B

Seagate

Momentus 7200.3 250GBView product
Features4 differ
HDD capacityDiffers146 GB250 GB
HDD speedDiffers15000 RPM7200 RPM
HDD sizeKnown for one2.5"
InterfaceDiffersUltra320 SCSISerial ATA
Component forKnown for oneLaptop
Storage drive buffer sizeKnown for one16 MB
HDD number of headsKnown for one3
Average latencyDiffers4.9 ms4.17 ms
Start/stop cyclesKnown for one600000
Mean time between failures (MTBF)Known for one500000 h
Full stroke seek timeKnown for one10 ms
Poweridentical
Power consumption (standby)Known for one0.21 W
Power consumption (idle)Known for one0.75 W
Power consumption (read)Known for one2.1 W
Power consumption (write)Known for one2.1 W
Operating voltageKnown for one5 V
Operational conditionsidentical
Operating temperature (T-T)Known for one0 - 60 °C
Storage temperature (T-T)Known for one-40 - 70 °C
Operating shockKnown for one350 G
Non-operating shockKnown for one1000 G
Weight & dimensions3 differ
WidthDiffers101.6 mm69.8 mm
DepthKnown for one100.5 mm
HeightDiffers25.4 mm9.5 mm
WeightDiffers800 g110 g
Other features1 differ
HDD transfer rateDiffers320 Mbit/s80 Mbit/s
Data transfer rateKnown for one3 Gbit/s
Disks included quantityKnown for one2 pc(s)
Maximum data transfer rateKnown for one300 Mbit/s
Acoustic pressure emissionsKnown for one2.3 dB
Interface typeKnown for oneWide Ultra320 SCSI-LVD

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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