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Product comparison · 2 internal hard drives

Seagate 160GB HDD vs Seagate 18.4GB HDD

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  • 25specifications compared
  • 19differ
  • 6identical
  • 11known for one product only

Key differences

The Seagate 160GB HDD has 141.6 GB more HDD capacity than the Seagate 18.4GB HDD (160 GB vs 18.4 GB). The Seagate 18.4GB HDD has 7,800 RPM more HDD speed than the Seagate 160GB HDD (15000 RPM vs 7200 RPM). The Seagate 18.4GB HDD has 6 MB more storage drive buffer size than the Seagate 160GB HDD (8 MB vs 2 MB). Interface: Ultra-ATA/100 on the Seagate 160GB HDD, SCSI on the Seagate 18.4GB HDD. Operating temperature (T-T): 0 - 60 °C on the Seagate 160GB HDD, 5 - 55 °C on the Seagate 18.4GB HDD.

  • HDD capacity
    • 160 GB
    • 18.4 GB
  • HDD speed
    • 7200 RPM
    • 15000 RPM
  • Interface
    • Ultra-ATA/100
    • SCSI
  • Storage drive buffer size
    • 2 MB
    • 8 MB
  • HDD number of heads
    • 4
    • 2
  • Read seek time
    • 8.5 ms
    • 3.6 ms
  • Write seek time
    • 9.5 ms
    • 3.9 ms
  • Track to track seek time
    • 1.2 ms
    • 0.4 ms

Side by side

Differences highlightedShow differences only
36 specifications
A

Seagate

160GB HDDView product
B

Seagate

18.4GB HDDView product
Features10 differ
HDD capacityDiffers160 GB18.4 GB
HDD speedDiffers7200 RPM15000 RPM
HDD size3.5"3.5"
InterfaceDiffersUltra-ATA/100SCSI
TypeHDDHDD
Storage drive buffer sizeDiffers2 MB8 MB
HDD number of headsDiffers42
Read seek timeDiffers8.5 ms3.6 ms
Write seek timeDiffers9.5 ms3.9 ms
Track to track seek timeDiffers1.2 ms0.4 ms
Average latencyDiffers4.16 ms2 ms
Bytes per sectorKnown for one512
Start/stop cyclesKnown for one50000
Mean time between failures (MTBF)Differs600000 h1200000 h
Component forKnown for oneServer/workstation
Average seek timeKnown for one3.6 ms
Power2 differ
Power consumption (standby)Known for one0.9 W
Power consumption (idle)Differs7.5 W9 W
Operating voltage5 / 12 V5 / 12 V
Start-up currentDiffers2.8 A1.03 A
Operational conditions4 differ
Operating temperature (T-T)Differs0 - 60 °C5 - 55 °C
Storage temperature (T-T)-40 - 70 °C-40 - 70 °C
Operating relative humidity (H-H)Known for one5 - 90%
Storage relative humidity (H-H)Known for one5 - 95%
Operating vibration0.5 G0.5 G
Non-operating vibrationDiffers5 G2 G
Operating altitudeKnown for one-60.96 - 3048 m
Non-operating altitudeKnown for one-60.96 - 12192 m
Operating shockDiffers63 G60 G
Non-operating shockDiffers350 G250 G
Weight & dimensions3 differ
Width101.6 mm101.6 mm
DepthDiffers147 mm146.6 mm
HeightDiffers26 mm25.4 mm
WeightDiffers635 g800 g
Other featuresidentical
Drive ready timeKnown for one10 s
I/O portsKnown for oneULTRA ATA

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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