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Product comparison · 2 internal hard drives

Samsung 30GB Ultra ATA Hard Drive vs Seagate 400GB HDD

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  • 22specifications compared
  • 17differ
  • 5identical
  • 17known for one product only

Key differences

The Seagate 400GB HDD has 370 GB more HDD capacity than the Samsung 30GB Ultra ATA Hard Drive (400 GB vs 30 GB). The Seagate 400GB HDD has 1,800 RPM more HDD speed than the Samsung 30GB Ultra ATA Hard Drive (7200 RPM vs 5400 RPM). The Seagate 400GB HDD has 1" more HDD size than the Samsung 30GB Ultra ATA Hard Drive (3.5" vs 2.5"). Interface: Ultra-ATA/133 on the Samsung 30GB Ultra ATA Hard Drive, Ultra-ATA/100 on the Seagate 400GB HDD. Operating voltage: 5 V on the Samsung 30GB Ultra ATA Hard Drive, 5 / 12 V on the Seagate 400GB HDD.

  • HDD capacity
    • 30 GB
    • 400 GB
  • HDD speed
    • 5400 RPM
    • 7200 RPM
  • HDD size
    • 2.5"
    • 3.5"
  • Interface
    • Ultra-ATA/133
    • Ultra-ATA/100
  • Average latency
    • 5.6 ms
    • 4.16 ms
  • Start/stop cycles
    • 300000
    • 50000
  • Power consumption (standby)
    • 0.25 W
    • 0.8 W
  • Operating voltage
    • 5 V
    • 5 / 12 V

Side by side

Differences highlightedShow differences only
39 specifications
A

Samsung

30GB Ultra ATA Hard DriveView product
B

Seagate

400GB HDDView product
Features6 differ
HDD capacityDiffers30 GB400 GB
HDD speedDiffers5400 RPM7200 RPM
HDD sizeDiffers2.5"3.5"
InterfaceDiffersUltra-ATA/133Ultra-ATA/100
TypeKnown for oneHDD
Storage drive buffer size8 MB8 MB
Average seek timeKnown for one8 ms
Average latencyDiffers5.6 ms4.16 ms
Bytes per sector512512
Start/stop cyclesDiffers30000050000
Access timeKnown for one12 ms
Full stroke seek timeKnown for one22 ms
Track to track seek timeKnown for one2 ms
Mean time between failures (MTBF)Known for one330000 h
Power2 differ
Power consumption (typical)Known for one12.4 W
Power consumption (standby)Differs0.25 W0.8 W
Power consumption (idle)Known for one7.2 W
Power consumption (read)Known for one12.8 W
Power consumption (write)Known for one12.8 W
Operating voltageDiffers5 V5 / 12 V
Start-up currentKnown for one2.8 A
Operational conditions5 differ
Operating temperature (T-T)Differs5 - 55 °C0 - 60 °C
Storage temperature (T-T)-40 - 70 °C-40 - 70 °C
Operating relative humidity (H-H)5 - 90%5 - 90%
Storage relative humidity (H-H)5 - 95%5 - 95%
Operating vibrationKnown for one0.5 G
Non-operating vibrationKnown for one5 G
Operating altitudeDiffers-305 - 3050 m-60.96 - 3048 m
Non-operating altitudeDiffers-305 - 12200 m-60.96 - 12192 m
Operating shockDiffers250 G63 G
Non-operating shockDiffers350 G300 G
Weight & dimensions4 differ
WidthDiffers100 mm101.8 mm
DepthDiffers70 mm147 mm
HeightDiffers9.5 mm26.1 mm
WeightDiffers100 g635 g
Other featuresidentical
Power requirementsKnown for one+5V±5%
Drive device, transfer rateKnown for one100 MB/s
Drive ready timeKnown for one4 s
InternalKnown for oneYes

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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