Product comparison · 2 internal hard drives

Seagate 160GB 2.5" Ultra ATA/100 vs Seagate 500GB 3.5" Ultra ATA/100

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  • 24specifications compared
  • 15differ
  • 9identical
  • 12known for one product only

Key differences

The Seagate 500GB 3.5" Ultra ATA/100 has 340 GB more HDD capacity than the Seagate 160GB 2.5" Ultra ATA/100 (500 GB vs 160 GB). The Seagate 500GB 3.5" Ultra ATA/100 has 1,800 RPM more HDD speed than the Seagate 160GB 2.5" Ultra ATA/100 (7200 RPM vs 5400 RPM). The Seagate 500GB 3.5" Ultra ATA/100 has 1" more HDD size than the Seagate 160GB 2.5" Ultra ATA/100 (3.5" vs 2.5"). Operating voltage: 5 V on the Seagate 160GB 2.5" Ultra ATA/100, 5 / 12 V on the Seagate 500GB 3.5" Ultra ATA/100.

  • HDD capacity
    • 160GB 2.5" Ultra ATA/100:160 GB
    • 500GB 3.5" Ultra ATA/100:500 GB
  • HDD speed
    • 160GB 2.5" Ultra ATA/100:5400 RPM
    • 500GB 3.5" Ultra ATA/100:7200 RPM
  • HDD size
    • 160GB 2.5" Ultra ATA/100:2.5"
    • 500GB 3.5" Ultra ATA/100:3.5"
  • HDD number of heads
    • 160GB 2.5" Ultra ATA/100:4
    • 500GB 3.5" Ultra ATA/100:16
  • Read seek time
    • 160GB 2.5" Ultra ATA/100:12.5 ms
    • 500GB 3.5" Ultra ATA/100:11 ms
  • Write seek time
    • 160GB 2.5" Ultra ATA/100:13 ms
    • 500GB 3.5" Ultra ATA/100:12 ms
  • Average latency
    • 160GB 2.5" Ultra ATA/100:5.6 ms
    • 500GB 3.5" Ultra ATA/100:4.16 ms
  • Operating voltage
    • 160GB 2.5" Ultra ATA/100:5 V
    • 500GB 3.5" Ultra ATA/100:5 / 12 V

Side by side

Differences highlightedShow differences only (off)
Comparison of 160GB 2.5" Ultra ATA/100, 500GB 3.5" Ultra ATA/100
36 specifications
Features7 differ
HDD capacityDiffers160 GB500 GB
HDD speedDiffers5400 RPM7200 RPM
HDD sizeDiffers2.5"3.5"
InterfaceUltra-ATA/100Ultra-ATA/100
TypeHDDHDD
Component forKnown for oneLaptopUnknown — not stated by the source
Storage drive buffer size8 MB8 MB
HDD number of headsDiffers416
Read seek timeDiffers12.5 ms11 ms
Write seek timeDiffers13 ms12 ms
Average latencyDiffers5.6 ms4.16 ms
Bytes per sectorKnown for one512Unknown — not stated by the source
HDD number of cylindersKnown for oneUnknown — not stated by the source16383
Start/stop cyclesKnown for oneUnknown — not stated by the source50000
Power2 differ
Power consumption (standby)Known for one0.2 WUnknown — not stated by the source
Power consumption (idle)Known for one0.8 WUnknown — not stated by the source
Power consumption (read)Known for one2 WUnknown — not stated by the source
Power consumption (write)Known for one1.8 WUnknown — not stated by the source
Operating voltageDiffers5 V5 / 12 V
Start-up currentDiffers1 A2.6 A
Operational conditions2 differ
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 shockDiffers350 G63 G
Non-operating shockDiffers900 G300 G
Weight & dimensions4 differ
WidthDiffers69.8 mm101.6 mm
DepthDiffers100.2 mm147 mm
HeightDiffers9.5 mm26 mm
WeightDiffers102 g710 g
Other featuresidentical
Sustained data rateKnown for one44 MB/sUnknown — not stated by the source
Drive devices burst data transfer rate (DMA)Known for oneUnknown — not stated by the source2
Drive devices burst data transfer rate (PIO)Known for oneUnknown — not stated by the source4
Drive devices burst data transfer rate (Ultra DMA)Known for oneUnknown — not stated by the source5

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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