Product comparison · 2 internal hard drives

Seagate 2TB 3.5" SATA III vs Seagate 4TB SATA 6Gb/s

11specifications compared
5differ
6identical
22known for one product only

Key differences

HDD capacity
- 2TB 3.5" SATA III:2 TB
- 4TB SATA 6Gb/s:4 TB
Storage drive buffer size
- 2TB 3.5" SATA III:32 MB
- 4TB SATA 6Gb/s:64 MB
Depth
- 2TB 3.5" SATA III:26.1 mm
- 4TB SATA 6Gb/s:147 mm
Height
- 2TB 3.5" SATA III:146.1 mm
- 4TB SATA 6Gb/s:26.1 mm
Weight
- 2TB 3.5" SATA III:408 g
- 4TB SATA 6Gb/s:610 g

Side by side

Differences highlightedShow differences only

Comparison of 2TB 3.5" SATA III, 4TB SATA 6Gb/s
33 specifications	A Seagate 2TB 3.5" SATA III View product	B Seagate 4TB SATA 6Gb/s View product
Features2 differ
HDD capacityDiffers	2 TB	4 TB
HDD speedKnown for one	7200 RPM	Unknown — not stated by the source
Storage drive buffer sizeDiffers	32 MB	64 MB
Hybrid-HDD cache memoryKnown for one	8 GB	Unknown — not stated by the source
HDD number of headsKnown for one	Unknown — not stated by the source	8
Read seek timeKnown for one	Unknown — not stated by the source	12 ms
Write seek timeKnown for one	Unknown — not stated by the source	12 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	4096
Start/stop cyclesKnown for one	Unknown — not stated by the source	300000
Poweridentical
Power consumption (typical)Known for one	Unknown — not stated by the source	7.5 W
Power consumption (standby)Known for one	Unknown — not stated by the source	0.75 W
Power consumption (idle)Known for one	Unknown — not stated by the source	6.2 W
Packaging contentidentical
Quick start guideKnown for one	Yes	Unknown — not stated by the source
Weight & dimensions3 differ
DepthDiffers	26.1 mm	147 mm
HeightDiffers	146.1 mm	26.1 mm
WeightDiffers	408 g	610 g
Packaging dataidentical
Quantity per packKnown for one	1 pc(s)	Unknown — not stated by the source
Package widthKnown for one	196.8 mm	Unknown — not stated by the source
Package depthKnown for one	73.2 mm	Unknown — not stated by the source
Package weightKnown for one	850 g	Unknown — not stated by the source
Package heightKnown for one	149.3 mm	Unknown — not stated by the source
Other featuresidentical
Windows operating systems supportedKnown for one	Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Win	Unknown — not stated by the source
Mac operating systems supportedKnown for one	Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks	Unknown — not stated by the source
Linux operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Flash memoryKnown for one	Unknown — not stated by the source	8192 MB
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 60 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 70 °C

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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