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Product comparison · 2 internal hard drives

Seagate Barracuda 7200.9 160 GB 7200 rpm Serial ATA NCQ vs Seagate Momentus 5400.3 40 GB 5400 rpm Ultra ATA/100

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  • 19specifications compared
  • 16differ
  • 3identical
  • 9known for one product only

Key differences

The Seagate Barracuda 7200.9 160 GB 7200 rpm Serial ATA NCQ has 120 GB more HDD capacity than the Seagate Momentus 5400.3 40 GB 5400 rpm Ultra ATA/100 (160 GB vs 40 GB). The Seagate Barracuda 7200.9 160 GB 7200 rpm Serial ATA NCQ 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 7200.9 160 GB 7200 rpm Serial ATA NCQ (8 MB vs 2 MB). Interface: Serial ATA II on the Seagate Barracuda 7200.9 160 GB 7200 rpm Serial ATA NCQ, Ultra-ATA/100 on the Seagate Momentus 5400.3 40 GB 5400 rpm Ultra ATA/100. Dimensions (WxDxH): 101.6 x 146.99 x 26.1 mm on the Seagate Barracuda 7200.9 160 GB 7200 rpm Serial ATA NCQ, 69.85 x 100.2 x 9.5 mm on the Seagate Momentus 5400.3 40 GB 5400 rpm Ultra ATA/100.

  • HDD capacity
    • 160 GB
    • 40 GB
  • HDD speed
    • 7200 RPM
    • 5400 RPM
  • Interface
    • Serial ATA II
    • Ultra-ATA/100
  • Storage drive buffer size
    • 2 MB
    • 8 MB
  • HDD number of heads
    • 16
    • 1
  • Average latency
    • 4.16 ms
    • 5.6 ms
  • Power consumption (standby)
    • 1.30 W
    • 0.2 W
  • Start-up current
    • 2.8 A
    • 1 A

Side by side

Differences highlightedShow differences only
28 specifications
A

Seagate

Barracuda 7200.9 160 GB 7200 rpm Serial ATA NCQView product
B

Seagate

Momentus 5400.3 40 GB 5400 rpm Ultra ATA/100View product
Features6 differ
HDD capacityDiffers160 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 headsDiffers161
Average latencyDiffers4.16 ms5.6 ms
Bytes per sectorKnown for one512
Start/stop cyclesKnown for one600000
HDD number of cylindersKnown for one16383
Power2 differ
Power consumption (standby)Differs1.30 W0.2 W
Operating voltageKnown for one5 V
Start-up currentDiffers2.8 A1 A
Operational conditions2 differ
Operating temperature (T-T)Known for one0 - 60 °C
Storage temperature (T-T)Known for one-40 - 70 °C
Operating shockDiffers63 G350 G
Non-operating shockDiffers350 G900 G
Weight & dimensions4 differ
WidthDiffers101.6 mm69.8 mm
DepthDiffers147 mm100.2 mm
HeightDiffers26.1 mm9.5 mm
WeightDiffers580 g98 g
Other features2 differ
Dimensions (WxDxH)Differs101.6 x 146.99 x 26.1 mm69.85 x 100.2 x 9.5 mm
Drive device, transfer rateDiffers300 MB/s100 MB/s
External power adapterNoNo
InternalYesYes
USB poweredNoNo
HDD transfer rateKnown for one867.2 Mbit/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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