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Product comparison · 2 internal hard drives

Seagate Momentus 5400.3 100GB Ultra ATA/100 25pk bulk vs Seagate Momentus 5400.3 120GB SATA 5400RPM 25pk

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  • 22specifications compared
  • 4differ
  • 18identical
  • 9known for one product only

Key differences

The Seagate Momentus 5400.3 120GB SATA 5400RPM 25pk has 20 GB more HDD capacity than the Seagate Momentus 5400.3 100GB Ultra ATA/100 25pk bulk (120 GB vs 100 GB). The Seagate Momentus 5400.3 120GB SATA 5400RPM 25pk has 1.5 ms more average seek time than the Seagate Momentus 5400.3 100GB Ultra ATA/100 25pk bulk (12.5 ms vs 11 ms). The Seagate Momentus 5400.3 120GB SATA 5400RPM 25pk has 50 MB/s more drive device, transfer rate than the Seagate Momentus 5400.3 100GB Ultra ATA/100 25pk bulk (150 MB/s vs 100 MB/s). Interface: Ultra-ATA/100 on the Seagate Momentus 5400.3 100GB Ultra ATA/100 25pk bulk, Serial ATA on the Seagate Momentus 5400.3 120GB SATA 5400RPM 25pk.

  • HDD capacity
    • 100 GB
    • 120 GB
  • Interface
    • Ultra-ATA/100
    • Serial ATA
  • Average seek time
    • 11 ms
    • 12.5 ms
  • Drive device, transfer rate
    • 100 MB/s
    • 150 MB/s

Side by side

Differences highlightedShow differences only
31 specifications
A

Seagate

Momentus 5400.3 100GB Ultra ATA/100 25pk bulkView product
B

Seagate

Momentus 5400.3 120GB SATA 5400RPM 25pkView product
Features3 differ
HDD capacityDiffers100 GB120 GB
HDD speed5400 RPM5400 RPM
HDD size2.5"2.5"
InterfaceDiffersUltra-ATA/100Serial ATA
Component forLaptopLaptop
Storage drive buffer size8 MB8 MB
HDD number of cylindersKnown for one1024
HDD number of headsKnown for one256
Read seek timeKnown for one22 ms
Write seek timeKnown for one24 ms
Average seek timeDiffers11 ms12.5 ms
Average latency5.6 ms5.6 ms
Poweridentical
Power consumption (standby)0.2 W0.2 W
Operating voltage5 V5 V
Start-up current1 A1 A
Operational conditionsidentical
Operating shock350 G350 G
Operating temperature (T-T)Known for one0 - 60 °C
Storage temperature (T-T)Known for one-40 - 70 °C
Non-operating shockKnown for one900 G
Weight & dimensionsidentical
Width69.8 mm69.8 mm
Depth100.2 mm100.2 mm
Height9.5 mm9.5 mm
Weight102 g102 g
Other features1 differ
Dimensions (WxDxH)69.85 x 100.2 x 9.5 mm69.85 x 100.2 x 9.5 mm
Drive device, transfer rateDiffers100 MB/s150 MB/s
External power adapterNoNo
InternalYesYes
Mac compatibilityNoNo
Maximum data transfer rateKnown for one352 Mbit/s
Plug and PlayKnown for oneYes
USB poweredNoNo

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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