Product comparison · 2 internal hard drives

Seagate 120GB 2.5 vs Seagate 80GB 3.5

Key differences

Differences highlightedShow differences only

Comparison of 120GB 2.5, 80GB 3.5
35 specifications	A Seagate 120GB 2.5 View product	B Seagate 80GB 3.5 View product
Features7 differ
HDD capacityDiffers	120 GB	80 GB
HDD speedDiffers	5400 RPM	7200 RPM
HDD sizeDiffers	2.5"	3.5"
InterfaceDiffers	Serial ATA	Serial ATA II
Component forKnown for one	Laptop	Unknown — not stated by the source
HDD number of headsKnown for one	3	Unknown — not stated by the source
Read seek timeDiffers	11 ms	9.5 ms
Write seek timeDiffers	13 ms	10.5 ms
Average latencyDiffers	5.6 ms	4.16 ms
HDD number of cylindersKnown for one	Unknown — not stated by the source	16383
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Start/stop cyclesKnown for one	Unknown — not stated by the source	50000
Power2 differ
Power consumption (standby)Known for one	0.2 W	Unknown — not stated by the source
Power consumption (idle)Known for one	0.6 W	Unknown — not stated by the source
Power consumption (read)Known for one	1.9 W	Unknown — not stated by the source
Power consumption (write)Known for one	1.8 W	Unknown — not stated by the source
Operating voltageDiffers	5 V	5 / 12 V
Start-up currentDiffers	1 A	2.6 A
Operational conditions2 differ
Operating shockDiffers	350 G	63 G
Non-operating shockDiffers	800 G	350 G
Weight & dimensions4 differ
WidthDiffers	69.8 mm	101.6 mm
DepthDiffers	100.2 mm	147 mm
HeightDiffers	9.5 mm	26.1 mm
WeightDiffers	102 g	580 g
Other featuresidentical
Acoustic pressure emissionsKnown for one	Unknown — not stated by the source	25 dB

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.