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Product comparison · 2 internal hard drives

Seagate Barracuda 80GB Serial ATA II HDD vs Seagate Momentus 5400.3 40 GB 5400 rpm Ultra ATA/100

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  • 19specifications compared
  • 13differ
  • 6identical
  • 7known for one product only

Key differences

The Seagate Barracuda 80GB Serial ATA II HDD has 40 GB more HDD capacity than the Seagate Momentus 5400.3 40 GB 5400 rpm Ultra ATA/100 (80 GB vs 40 GB). The Seagate Barracuda 80GB Serial ATA II HDD has 1,800 RPM more HDD speed than the Seagate Momentus 5400.3 40 GB 5400 rpm Ultra ATA/100 (7200 RPM vs 5400 RPM). The Seagate Momentus 5400.3 40 GB 5400 rpm Ultra ATA/100 has 6 MB more storage drive buffer size than the Seagate Barracuda 80GB Serial ATA II HDD (8 MB vs 2 MB). Interface: Serial ATA II on the Seagate Barracuda 80GB Serial ATA II HDD, Ultra-ATA/100 on the Seagate Momentus 5400.3 40 GB 5400 rpm Ultra ATA/100. Dimensions (WxDxH): 101.6 x 146.99 x 19.99 mm on the Seagate Barracuda 80GB Serial ATA II HDD, 69.85 x 100.2 x 9.5 mm on the Seagate Momentus 5400.3 40 GB 5400 rpm Ultra ATA/100.

  • HDD capacity
    • 80 GB
    • 40 GB
  • HDD speed
    • 7200 RPM
    • 5400 RPM
  • Interface
    • Serial ATA II
    • Ultra-ATA/100
  • Storage drive buffer size
    • 2 MB
    • 8 MB
  • Average latency
    • 4.16 ms
    • 5.6 ms
  • Power consumption (standby)
    • 1.5 W
    • 0.2 W
  • Operating shock
    • 63 G
    • 350 G
  • Non-operating shock
    • 350 G
    • 900 G

Side by side

Differences highlightedShow differences only
26 specifications
A

Seagate

Barracuda 80GB Serial ATA II HDDView product
B

Seagate

Momentus 5400.3 40 GB 5400 rpm Ultra ATA/100View product
Features5 differ
HDD capacityDiffers80 GB40 GB
HDD speedDiffers7200 RPM5400 RPM
HDD sizeKnown for one2.5"
InterfaceDiffersSerial ATA IIUltra-ATA/100
Component forKnown for oneLaptop
Storage drive buffer sizeDiffers2 MB8 MB
HDD number of headsKnown for one1
Average latencyDiffers4.16 ms5.6 ms
Start/stop cyclesKnown for one600000
Power1 differ
Power consumption (standby)Differs1.5 W0.2 W
Operating voltageKnown for one5 V
Start-up currentKnown for one1 A
Operational conditions2 differ
Operating shockDiffers63 G350 G
Non-operating shockDiffers350 G900 G
Weight & dimensions4 differ
WidthDiffers101.6 mm69.8 mm
DepthDiffers147 mm100.2 mm
HeightDiffers20 mm9.5 mm
WeightDiffers365 g98 g
Other features1 differ
Dimensions (WxDxH)Differs101.6 x 146.99 x 19.99 mm69.85 x 100.2 x 9.5 mm
Drive device, transfer rateKnown for one100 MB/s

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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