Product comparison · 2 internal hard drives

Seagate 10K.6 900GB 2.5 vs Seagate 400GB 3.5

20specifications compared
15differ
5identical
16known for one product only

Key differences

HDD capacity
- 10K.6 900GB 2.5:900 GB
- 400GB 3.5:400 GB
HDD speed
- 10K.6 900GB 2.5:10000 RPM
- 400GB 3.5:7200 RPM
HDD size
- 10K.6 900GB 2.5:2.5"
- 400GB 3.5:3.5"
Interface
- 10K.6 900GB 2.5:SAS
- 400GB 3.5:Serial ATA II
Storage drive buffer size
- 10K.6 900GB 2.5:64 MB
- 400GB 3.5:16 MB
Average latency
- 10K.6 900GB 2.5:2.9 ms
- 400GB 3.5:4.16 ms
Operating voltage
- 10K.6 900GB 2.5:5 V
- 400GB 3.5:5 / 12 V
Operating temperature (T-T)
- 10K.6 900GB 2.5:5 - 55 °C
- 400GB 3.5:0 - 60 °C

Side by side

Differences highlightedShow differences only

Comparison of 10K.6 900GB 2.5, 400GB 3.5
36 specifications	A Seagate 10K.6 900GB 2.5 View product	B Seagate 400GB 3.5 View product
Features6 differ
HDD capacityDiffers	900 GB	400 GB
HDD speedDiffers	10000 RPM	7200 RPM
HDD sizeDiffers	2.5"	3.5"
InterfaceDiffers	SAS	Serial ATA II
TypeKnown for one	Unknown — not stated by the source	HDD
Storage drive buffer sizeDiffers	64 MB	16 MB
HDD number of cylindersKnown for one	Unknown — not stated by the source	16383
HDD number of headsKnown for one	Unknown — not stated by the source	5
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	10 ms
Average latencyDiffers	2.9 ms	4.16 ms
Bytes per sector	512	512
Start/stop cyclesKnown for one	Unknown — not stated by the source	50000
Power1 differ
Operating voltageDiffers	5 V	5 / 12 V
Start-up currentKnown for one	Unknown — not stated by the source	2 A
Power consumption (idle)Known for one	3.9 W	Unknown — not stated by the source
Operational conditions4 differ
Operating temperature (T-T)Differs	5 - 55 °C	0 - 60 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Operating relative humidity (H-H)Differs	5 - 95%	5 - 90%
Storage relative humidity (H-H)	5 - 95%	5 - 95%
Operating altitudeKnown for one	Unknown — not stated by the source	-60.96 - 3048 m
Non-operating altitudeKnown for one	Unknown — not stated by the source	-60.96 - 12192 m
Operating shockDiffers	40 G	68 G
Non-operating shockDiffers	400 G	300 G
Operating vibrationKnown for one	0.5 G	Unknown — not stated by the source
Non-operating vibrationKnown for one	3 G	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	70.1 mm	101.6 mm
DepthDiffers	100.5 mm	147 mm
HeightDiffers	15 mm	26.1 mm
WeightDiffers	212 g	635 g
Other featuresidentical
Windows operating systems supported	Yes	Yes
Linux operating systems supported	Yes	Yes
Data transfer rateKnown for one	6 Gbit/s	Unknown — not stated by the source
InternalKnown for one	Yes	Unknown — not stated by the source
Number of products includedKnown for one	1 pc(s)	Unknown — not stated by the source
Mac operating systems supportedKnown for one	Yes	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.

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