Product comparison · 2 internal hard drives

Seagate 1000GB 3.5 vs Seagate 500GB 2.5

Key differences

Differences highlightedShow differences only

Comparison of 1000GB 3.5, 500GB 2.5
25 specifications	A Seagate 1000GB 3.5 View product	B Seagate 500GB 2.5 View product
Features4 differ
HDD capacityDiffers	1 TB	500 GB
HDD speed	7200 RPM	7200 RPM
HDD sizeDiffers	3.5"	2.5"
Interface	Serial ATA II	Serial ATA II
Type	HDD	HDD
Storage drive buffer size	32 MB	32 MB
HDD interface transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
Read seek time	8.5 ms	8.5 ms
Write seek timeDiffers	10 ms	9.5 ms
Average latency	4.16 ms	4.16 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Mean time between failures (MTBF)Differs	750000 h	1200000 h
Start/stop cyclesKnown for one	50000	Unknown — not stated by the source
Power1 differ
Power consumption (typical)Known for one	Unknown — not stated by the source	3.5 W
Power consumption (idle)Known for one	Unknown — not stated by the source	2.6 W
Operating voltageDiffers	5 / 12 V	5 V
Operational conditionsidentical
Operating temperature (T-T)	5 - 55 °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
Weight & dimensions4 differ
WidthDiffers	101.6 mm	70 mm
DepthDiffers	147 mm	100.5 mm
HeightDiffers	26.1 mm	14.8 mm
WeightDiffers	640 g	196 g
Other featuresidentical
Sustained data rateKnown for one	115 MB/s	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.