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Product comparison · 2 internal hard drives

Samsung 400GB Serial ATA II HDD, Retail vs Seagate Momentus 5400.3 80GB Ultra ATA/100 5400RPM 8MB 25pk bulk

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  • 18specifications compared
  • 14differ
  • 4identical
  • 22known for one product only

Key differences

The Samsung 400GB Serial ATA II HDD, Retail has 320 GB more HDD capacity than the Seagate Momentus 5400.3 80GB Ultra ATA/100 5400RPM 8MB 25pk bulk (400 GB vs 80 GB). The Samsung 400GB Serial ATA II HDD, Retail has 1,800 RPM more HDD speed than the Seagate Momentus 5400.3 80GB Ultra ATA/100 5400RPM 8MB 25pk bulk (7200 RPM vs 5400 RPM). The Samsung 400GB Serial ATA II HDD, Retail has 1" more HDD size than the Seagate Momentus 5400.3 80GB Ultra ATA/100 5400RPM 8MB 25pk bulk (3.5" vs 2.5"). Interface: Serial ATA II on the Samsung 400GB Serial ATA II HDD, Retail, Ultra-ATA/100 on the Seagate Momentus 5400.3 80GB Ultra ATA/100 5400RPM 8MB 25pk bulk. Operating voltage: 5 / 12 V on the Samsung 400GB Serial ATA II HDD, Retail, 5 V on the Seagate Momentus 5400.3 80GB Ultra ATA/100 5400RPM 8MB 25pk bulk.

  • HDD capacity
    • 400 GB
    • 80 GB
  • HDD speed
    • 7200 RPM
    • 5400 RPM
  • HDD size
    • 3.5"
    • 2.5"
  • Interface
    • Serial ATA II
    • Ultra-ATA/100
  • Storage drive buffer size
    • 16 MB
    • 8 MB
  • Average seek time
    • 8.9 ms
    • 12.5 ms
  • Average latency
    • 4.17 ms
    • 5.6 ms
  • Power consumption (standby)
    • 1.3 W
    • 0.2 W

Side by side

Differences highlightedShow differences only
40 specifications
A

Samsung

400GB Serial ATA II HDD, RetailView product
B

Seagate

Momentus 5400.3 80GB Ultra ATA/100 5400RPM 8MB 25pk bulkView product
Features7 differ
HDD capacityDiffers400 GB80 GB
HDD speedDiffers7200 RPM5400 RPM
HDD sizeDiffers3.5"2.5"
InterfaceDiffersSerial ATA IIUltra-ATA/100
Storage drive buffer sizeDiffers16 MB8 MB
Full stroke seek timeKnown for one18 ms
Track to track seek timeKnown for one0.8 ms
Average seek timeDiffers8.9 ms12.5 ms
Average latencyDiffers4.17 ms5.6 ms
Mean time between failures (MTBF)Known for one600000 h
Component forKnown for oneLaptop
HDD number of headsKnown for one2
Start/stop cyclesKnown for one600000
Power2 differ
Power consumption (typical)Known for one10 W
Power consumption (standby)Differs1.3 W0.2 W
Operating voltageDiffers5 / 12 V5 V
Start-up currentKnown for one1 A
Operational conditions2 differ
Operating relative humidity (H-H)Known for one5 - 90%
Storage relative humidity (H-H)Known for one5 - 95%
Operating altitudeKnown for one0 - 3000 m
Non-operating altitudeKnown for one0 - 12000 m
Operating shockDiffers63 G350 G
Non-operating shockDiffers300 G900 G
Weight & dimensions3 differ
WidthDiffers147 mm69.8 mm
DepthDiffers101.6 mm100.2 mm
HeightDiffers26.1 mm9.5 mm
WeightKnown for one102 g
Other featuresidentical
HDD transfer rateKnown for one1000 Mbit/s
Power requirementsKnown for one+5V±5%;+12V±10%
Drive ready timeKnown for one10 s
Dimensions (WxDxH)Known for one69.85 x 100.2 x 9.5 mm
Drive device, transfer rateKnown for one100 MB/s
External power adapterKnown for oneNo
Mac compatibilityKnown for oneNo
USB poweredKnown for oneNo
Compatible productsKnown for onePCs

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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