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Product comparison · 2 internal hard drives

Seagate HD Fireball 3 30GB ATA133 5400rpm vs Seagate MOMENTUS 20GB ATA100

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  • 8specifications compared
  • 7differ
  • 1identical
  • 8known for one product only

Key differences

The Seagate HD Fireball 3 30GB ATA133 5400rpm has 10 GB more HDD capacity than the Seagate MOMENTUS 20GB ATA100 (30 GB vs 20 GB). The Seagate MOMENTUS 20GB ATA100 has 6 MB more storage drive buffer size than the Seagate HD Fireball 3 30GB ATA133 5400rpm (8 MB vs 2 MB). The Seagate HD Fireball 3 30GB ATA133 5400rpm has 3 more HDD heads than the Seagate MOMENTUS 20GB ATA100 (4 vs 1). Interface: Ultra-ATA/133 on the Seagate HD Fireball 3 30GB ATA133 5400rpm, Ultra-ATA/100 on the Seagate MOMENTUS 20GB ATA100. Dimensions (WxDxH): 101.6 x 146.1 x 17.5 mm on the Seagate HD Fireball 3 30GB ATA133 5400rpm, 698.5 x 1002 x 95 mm on the Seagate MOMENTUS 20GB ATA100.

  • HDD capacity
    • 30 GB
    • 20 GB
  • Interface
    • Ultra-ATA/133
    • Ultra-ATA/100
  • Storage drive buffer size
    • 2 MB
    • 8 MB
  • HDD number of heads
    • 4
    • 1
  • Average latency
    • 5.5 ms
    • 5.6 ms
  • Weight
    • 509 g
    • 99 g
  • Dimensions (WxDxH)
    • 101.6 x 146.1 x 17.5 mm
    • 698.5 x 1002 x 95 mm

Side by side

Differences highlightedShow differences only
16 specifications
A

Seagate

HD Fireball 3 30GB ATA133 5400rpmView product
B

Seagate

MOMENTUS 20GB ATA100View product
Features5 differ
HDD capacityDiffers30 GB20 GB
HDD sizeKnown for one3.5"
InterfaceDiffersUltra-ATA/133Ultra-ATA/100
Storage drive buffer sizeDiffers2 MB8 MB
HDD number of headsDiffers41
Read seek timeKnown for one12 ms
Average latencyDiffers5.5 ms5.6 ms
HDD speedKnown for one5400 RPM
Component forKnown for oneLaptop
Average seek timeKnown for one12 ms
Poweridentical
Operating voltageKnown for one5 / 12 V
Weight & dimensions1 differ
WeightDiffers509 g99 g
Other features1 differ
Power requirementsKnown for one12V: 342mA (seek), 190mA (idle), 22mA (standby); 5V: 411mA (seek), 331mA (idle), 110mA (standby)
Dimensions (WxDxH)Differs101.6 x 146.1 x 17.5 mm698.5 x 1002 x 95 mm
InternalYesYes
Operational conditionsidentical
Operating temperature (T-T)Known for one5 - 55 °C

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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