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Product comparison · 2 internal hard drives

Seagate Barracuda 7200.9 80, Ultra ATA/100 vs Seagate Momentus 4200.2 30 GB Ultra ATA/100

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  • 12specifications compared
  • 8differ
  • 4identical
  • 9known for one product only

Key differences

The Seagate Barracuda 7200.9 80, Ultra ATA/100 has 50 GB more HDD capacity than the Seagate Momentus 4200.2 30 GB Ultra ATA/100 (80 GB vs 30 GB). The Seagate Barracuda 7200.9 80, Ultra ATA/100 has 3,000 RPM more HDD speed than the Seagate Momentus 4200.2 30 GB Ultra ATA/100 (7200 RPM vs 4200 RPM). The Seagate Momentus 4200.2 30 GB Ultra ATA/100 has 1.44 ms more average latency than the Seagate Barracuda 7200.9 80, Ultra ATA/100 (5.6 ms vs 4.16 ms). Dimensions (WxDxH): 101.6 x 146.9 x 26.04 mm on the Seagate Barracuda 7200.9 80, Ultra ATA/100, 69.85 x 100.2 x 9.5 mm on the Seagate Momentus 4200.2 30 GB Ultra ATA/100.

  • HDD capacity
    • 80 GB
    • 30 GB
  • HDD speed
    • 7200 RPM
    • 4200 RPM
  • Average latency
    • 4.16 ms
    • 5.6 ms
  • Width
    • 101.6 mm
    • 69.8 mm
  • Depth
    • 146.9 mm
    • 100.2 mm
  • Height
    • 26 mm
    • 9.5 mm
  • Weight
    • 580 g
    • 100 g
  • Dimensions (WxDxH)
    • 101.6 x 146.9 x 26.04 mm
    • 69.85 x 100.2 x 9.5 mm

Side by side

Differences highlightedShow differences only
21 specifications
A

Seagate

Barracuda 7200.9 80, Ultra ATA/100View product
B

Seagate

Momentus 4200.2 30 GB Ultra ATA/100View product
Features3 differ
HDD capacityDiffers80 GB30 GB
HDD speedDiffers7200 RPM4200 RPM
InterfaceUltra-ATA/100Ultra-ATA/100
Storage drive buffer size2 MB2 MB
HDD number of cylindersKnown for one1024
HDD number of headsKnown for one256
Average latencyDiffers4.16 ms5.6 ms
Component forKnown for oneLaptop
Average seek timeKnown for one12.5 ms
Weight & dimensions4 differ
WidthDiffers101.6 mm69.8 mm
DepthDiffers146.9 mm100.2 mm
HeightDiffers26 mm9.5 mm
WeightDiffers580 g100 g
Other features1 differ
HDD transfer rate100 Mbit/s100 Mbit/s
Power requirementsKnown for one2.6
Dimensions (WxDxH)Differs101.6 x 146.9 x 26.04 mm69.85 x 100.2 x 9.5 mm
InternalYesYes
Drive devices burst data transfer rate (DMA)Known for one2
Drive devices burst data transfer rate (PIO)Known for one4
Drive devices burst data transfer rate (Ultra DMA)Known for one5
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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