Product comparison · 2 internal hard drives

Seagate 250GB 2.5 vs Seagate 500GB 2.5

Key differences

Differences highlightedShow differences only

Comparison of 250GB 2.5, 500GB 2.5
27 specifications	A Seagate 250GB 2.5 View product	B Seagate 500GB 2.5 View product
Features2 differ
HDD capacityDiffers	250 GB	500 GB
HDD speed	7200 RPM	7200 RPM
HDD size	2.5"	2.5"
Interface	Serial ATA II	Serial ATA II
Type	HDD	HDD
Storage drive buffer sizeDiffers	16 MB	32 MB
HDD interface transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
Read seek timeKnown for one	Unknown — not stated by the source	8.5 ms
Write seek timeKnown for one	Unknown — not stated by the source	9.5 ms
Average latencyKnown for one	Unknown — not stated by the source	4.16 ms
Bytes per sector	512	512
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	1200000 h
Component forKnown for one	Laptop	Unknown — not stated by the source
Start/stop cyclesKnown for one	600000	Unknown — not stated by the source
Power2 differ
Power consumption (typical)Differs	1.554 W	3.5 W
Power consumption (idle)Differs	0.67 W	2.6 W
Operating voltage	5 V	5 V
Operational conditions1 differ
Operating temperature (T-T)Differs	0 - 60 °C	5 - 55 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Operating vibrationKnown for one	Unknown — not stated by the source	0.5 G
Non-operating vibrationKnown for one	Unknown — not stated by the source	2.4 G
Operating shockKnown for one	350 G	Unknown — not stated by the source
Non-operating shockKnown for one	1000 G	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	69.8 mm	70 mm
DepthDiffers	100.3 mm	100.5 mm
HeightDiffers	9.5 mm	14.8 mm
WeightDiffers	105 g	196 g

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.