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Product comparison · 2 internal hard drives

Seagate 30GB HDD vs Seagate BARRACUDA 7200.8 400GB

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  • 7specifications compared
  • 7differ
  • 0identical
  • 32known for one product only

Key differences

The Seagate BARRACUDA 7200.8 400GB has 370 GB more HDD capacity than the Seagate 30GB HDD (400 GB vs 30 GB). The Seagate BARRACUDA 7200.8 400GB has 3,000 RPM more HDD speed than the Seagate 30GB HDD (7200 RPM vs 4200 RPM). The Seagate BARRACUDA 7200.8 400GB has 1" more HDD size than the Seagate 30GB HDD (3.5" vs 2.5"). Interface: Ultra-ATA/100 on the Seagate 30GB HDD, Serial ATA on the Seagate BARRACUDA 7200.8 400GB. Operating voltage: 5 V on the Seagate 30GB HDD, 5 / 12 V on the Seagate BARRACUDA 7200.8 400GB.

  • HDD capacity
    • 30 GB
    • 400 GB
  • HDD speed
    • 4200 RPM
    • 7200 RPM
  • HDD size
    • 2.5"
    • 3.5"
  • Interface
    • Ultra-ATA/100
    • Serial ATA
  • Storage drive buffer size
    • 2 MB
    • 8 MB
  • Average seek time
    • 12 ms
    • 8 ms
  • Operating voltage
    • 5 V
    • 5 / 12 V

Side by side

Differences highlightedShow differences only
39 specifications
A

Seagate

30GB HDDView product
B

Seagate

BARRACUDA 7200.8 400GBView product
Features6 differ
HDD capacityDiffers30 GB400 GB
HDD speedDiffers4200 RPM7200 RPM
HDD sizeDiffers2.5"3.5"
InterfaceDiffersUltra-ATA/100Serial ATA
TypeKnown for oneHDD
Component forKnown for oneLaptop
Storage drive buffer sizeDiffers2 MB8 MB
HDD number of headsKnown for one2
Full stroke seek timeKnown for one22 ms
Track to track seek timeKnown for one2 ms
Average seek timeDiffers12 ms8 ms
Average latencyKnown for one5.6 ms
Bytes per sectorKnown for one512
Start/stop cyclesKnown for one20000
Mean time between failures (MTBF)Known for one330000 h
Power1 differ
Power consumption (typical)Known for one2.4 W
Power consumption (standby)Known for one0.36 W
Power consumption (idle)Known for one1.2 W
Power consumption (read)Known for one2.4 W
Power consumption (write)Known for one2.4 W
Operating voltageDiffers5 V5 / 12 V
Start-up currentKnown for one1.2 A
Operational conditionsidentical
Operating temperature (T-T)Known for one5 - 55 °C
Storage temperature (T-T)Known for one-40 - 65 °C
Operating relative humidity (H-H)Known for one5 - 90%
Storage relative humidity (H-H)Known for one5 - 95%
Operating vibrationKnown for one1 G
Non-operating vibrationKnown for one5 G
Operating altitudeKnown for one-192.12 - 3048 m
Non-operating altitudeKnown for one-304.8 - 12192 m
Operating shockKnown for one225 G
Non-operating shockKnown for one800 G
Weight & dimensionsidentical
WidthKnown for one69.8 mm
DepthKnown for one100.2 mm
HeightKnown for one9.5 mm
WeightKnown for one99 g
Other featuresidentical
Acoustic pressure emissionsKnown for one23 dB
Special featuresKnown for oneWhisper-quiet acoustics Serial ATA interface with NCQ
InternalKnown for oneYes

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