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Product comparison · 2 internal hard drives

Seagate 400GB 3.5" Ultra ATA/100 vs Seagate 500GB 3.5" Ultra ATA/100

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  • 25specifications compared
  • 3differ
  • 22identical
  • 5known for one product only

Key differences

The Seagate 500GB 3.5" Ultra ATA/100 has 100 GB more HDD capacity than the Seagate 400GB 3.5" Ultra ATA/100 (500 GB vs 400 GB). The Seagate 400GB 3.5" Ultra ATA/100 has 8 MB more storage drive buffer size than the Seagate 500GB 3.5" Ultra ATA/100 (16 MB vs 8 MB). The Seagate 400GB 3.5" Ultra ATA/100 has 0.1 mm more height than the Seagate 500GB 3.5" Ultra ATA/100 (26.1 mm vs 26 mm).

  • HDD capacity
    • 400 GB
    • 500 GB
  • Storage drive buffer size
    • 16 MB
    • 8 MB
  • Height
    • 26.1 mm
    • 26 mm

Side by side

Differences highlightedShow differences only
30 specifications
A

Seagate

400GB 3.5" Ultra ATA/100View product
B

Seagate

500GB 3.5" Ultra ATA/100View product
Features2 differ
HDD capacityDiffers400 GB500 GB
HDD speed7200 RPM7200 RPM
HDD size3.5"3.5"
InterfaceUltra-ATA/100Ultra-ATA/100
TypeHDDHDD
Storage drive buffer sizeDiffers16 MB8 MB
HDD number of cylinders1638316383
HDD number of heads1616
Read seek time11 ms11 ms
Write seek time12 ms12 ms
Average latency4.16 ms4.16 ms
Start/stop cycles5000050000
Bytes per sectorKnown for one512
Poweridentical
Operating voltage5 / 12 V5 / 12 V
Start-up currentKnown for one2.6 A
Operational conditionsidentical
Operating temperature (T-T)0 - 60 °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 altitude-60.96 - 3048 m-60.96 - 3048 m
Non-operating altitude-60.96 - 12192 m-60.96 - 12192 m
Operating shock63 G63 G
Non-operating shock300 G300 G
Weight & dimensions1 differ
Width101.6 mm101.6 mm
Depth147 mm147 mm
HeightDiffers26.1 mm26 mm
Weight710 g710 g
Other featuresidentical
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

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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