Product comparison · 2 internal hard drives

Seagate 2TB SATAIII vs Seagate 3TB SATAIII

Key differences

Differences highlightedShow differences only

Comparison of 2TB SATAIII, 3TB SATAIII
28 specifications	A Seagate 2TB SATAIII View product	B Seagate 3TB SATAIII View product
Features4 differ
HDD capacityDiffers	2 TB	3 TB
HDD speedDiffers	5900 RPM	7200 RPM
HDD sustained transfer rateDiffers	159 MiB/s	210 MiB/s
HDD number of headsKnown for one	Unknown — not stated by the source	6
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
Bytes per sectorKnown for one	Unknown — not stated by the source	4096
Start/stop cyclesDiffers	600000	300000
Component forKnown for one	NAS	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	1000000 h	Unknown — not stated by the source
Power4 differ
Power consumption (typical)Differs	4.3 W	8 W
Power consumption (standby)Differs	0.3 W	0.75 W
Power consumption (idle)Differs	3 W	5.8 W
Start-up currentDiffers	2 A	2.5 A
Operational conditions1 differ
Operating temperature (T-T)Differs	0 - 70 °C	0 - 60 °C
Weight & dimensions1 differ
WeightDiffers	535 g	629 g
Other featuresidentical
Compliance certificatesKnown for one	Unknown — not stated by the source	RoHS

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.