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Product comparison · 2 internal hard drives

Samsung 750GB Serial ATA II HDD vs Seagate Momentus 5400 PSD - 120GB - 5400rpm -

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  • 6specifications compared
  • 5differ
  • 1identical
  • 25known for one product only

Key differences

The Samsung 750GB Serial ATA II HDD has 630 GB more HDD capacity than the Seagate Momentus 5400 PSD - 120GB - 5400rpm - (750 GB vs 120 GB). The Samsung 750GB Serial ATA II HDD has 1,800 RPM more HDD speed than the Seagate Momentus 5400 PSD - 120GB - 5400rpm - (7200 RPM vs 5400 RPM). The Seagate Momentus 5400 PSD - 120GB - 5400rpm - has 3.6 ms more average seek time than the Samsung 750GB Serial ATA II HDD (12.5 ms vs 8.9 ms). Interface: Serial ATA II on the Samsung 750GB Serial ATA II HDD, Serial ATA on the Seagate Momentus 5400 PSD - 120GB - 5400rpm -.

  • HDD capacity
    • 750 GB
    • 120 GB
  • HDD speed
    • 7200 RPM
    • 5400 RPM
  • Interface
    • Serial ATA II
    • Serial ATA
  • Average seek time
    • 8.9 ms
    • 12.5 ms
  • Non-operating shock
    • 350 G
    • 900 G

Side by side

Differences highlightedShow differences only
31 specifications
A

Samsung

750GB Serial ATA II HDDView product
B

Seagate

Momentus 5400 PSD - 120GB - 5400rpm -View product
Features4 differ
HDD capacityDiffers750 GB120 GB
HDD speedDiffers7200 RPM5400 RPM
HDD sizeKnown for one3.5"
InterfaceDiffersSerial ATA IISerial ATA
Storage drive buffer sizeKnown for one16 MB
Average seek timeDiffers8.9 ms12.5 ms
Average latencyKnown for one4.17 ms
Bytes per sectorKnown for one512
Start/stop cyclesKnown for one50000
Component forKnown for oneLaptop
HDD number of headsKnown for one2
Poweridentical
Power consumption (typical)Known for one7.9 W
Power consumption (standby)Known for one0.8 W
Operating voltageKnown for one5 / 12 V
Operational conditions1 differ
Operating temperature (T-T)Known for one0 - 60 °C
Storage temperature (T-T)Known for one-40 - 70 °C
Operating relative humidity (H-H)Known for one5 - 90%
Storage relative humidity (H-H)Known for one5 - 95%
Operating altitudeKnown for one-300 - 3000 m
Non-operating altitudeKnown for one-300 - 12000 m
Operating shockKnown for one70 G
Non-operating shockDiffers350 G900 G
Weight & dimensionsidentical
WidthKnown for one101.5 mm
DepthKnown for one147 mm
HeightKnown for one26.1 mm
WeightKnown for one640 g
Other featuresidentical
Power requirementsKnown for one+5V±5%, +12V±10%
Drive ready timeKnown for one12 s
Data transfer rateKnown for one1.5 Gbit/s
Flash memoryKnown for one256 MB

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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