Product comparison · 2 internal hard drives

Seagate 160GB 3.5" Ultra ATA/100 vs Seagate 500GB 3.5" SATA II

25specifications compared
8differ
17identical
7known for one product only

Key differences

The Seagate 500GB 3.5" SATA II has 340 GB more HDD capacity than the Seagate 160GB 3.5" Ultra ATA/100 (500 GB vs 160 GB). The Seagate 500GB 3.5" SATA II has 14 MB more storage drive buffer size than the Seagate 160GB 3.5" Ultra ATA/100 (16 MB vs 2 MB). The Seagate 160GB 3.5" Ultra ATA/100 has 2.8 ms more read seek time than the Seagate 500GB 3.5" SATA II (11 ms vs 8.2 ms). Interface: Ultra-ATA/100 on the Seagate 160GB 3.5" Ultra ATA/100, Serial ATA II on the Seagate 500GB 3.5" SATA II.

HDD capacity
- 160GB 3.5" Ultra ATA/100:160 GB
- 500GB 3.5" SATA II:500 GB
Interface
- 160GB 3.5" Ultra ATA/100:Ultra-ATA/100
- 500GB 3.5" SATA II:Serial ATA II
Storage drive buffer size
- 160GB 3.5" Ultra ATA/100:2 MB
- 500GB 3.5" SATA II:16 MB
Read seek time
- 160GB 3.5" Ultra ATA/100:11 ms
- 500GB 3.5" SATA II:8.2 ms
Write seek time
- 160GB 3.5" Ultra ATA/100:12 ms
- 500GB 3.5" SATA II:9 ms
Depth
- 160GB 3.5" Ultra ATA/100:146.9 mm
- 500GB 3.5" SATA II:147 mm
Height
- 160GB 3.5" Ultra ATA/100:26 mm
- 500GB 3.5" SATA II:26.1 mm
Weight
- 160GB 3.5" Ultra ATA/100:580 g
- 500GB 3.5" SATA II:710 g

Side by side

Differences highlightedShow differences only

Comparison of 160GB 3.5" Ultra ATA/100, 500GB 3.5" SATA II
32 specifications	A Seagate 160GB 3.5" Ultra ATA/100 View product	B Seagate 500GB 3.5" SATA II View product
Features5 differ
HDD capacityDiffers	160 GB	500 GB
InterfaceDiffers	Ultra-ATA/100	Serial ATA II
Component forKnown for one	Unknown — not stated by the source	PC
Storage drive buffer sizeDiffers	2 MB	16 MB
Read seek timeDiffers	11 ms	8.2 ms
Write seek timeDiffers	12 ms	9 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Poweridentical
Start-up currentKnown for one	Unknown — not stated by the source	2.6 A
Weight & dimensions3 differ
DepthDiffers	146.9 mm	147 mm
HeightDiffers	26 mm	26.1 mm
WeightDiffers	580 g	710 g
Other featuresidentical
Compatible productsKnown for one	Unknown — not stated by the source	PCs
Drive devices burst data transfer rate (DMA)Known for one	2	Unknown — not stated by the source
Drive devices burst data transfer rate (PIO)Known for one	4	Unknown — not stated by the source
Drive devices burst data transfer rate (Ultra DMA)Known for one	5	Unknown — not stated by the source

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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