Product comparison · 2 internal hard drives

Seagate Constellation ST32000647SS internal hard drive vs Seagate Momentus Thin internal hard drive

17specifications compared
16differ
1identical
9known for one product only

Key differences

HDD capacity
- Constellation ST32000647SS internal hard drive:2 TB
- Momentus Thin internal hard drive:250 GB
HDD speed
- Constellation ST32000647SS internal hard drive:7200 RPM
- Momentus Thin internal hard drive:5400 RPM
HDD size
- Constellation ST32000647SS internal hard drive:3.5"
- Momentus Thin internal hard drive:2.5"
Interface
- Constellation ST32000647SS internal hard drive:6-Gb/s SAS,-
- Momentus Thin internal hard drive:Serial ATA
Storage drive buffer size
- Constellation ST32000647SS internal hard drive:64 MB
- Momentus Thin internal hard drive:16 MB
Average latency
- Constellation ST32000647SS internal hard drive:4.16 ms
- Momentus Thin internal hard drive:5.6 ms
Power consumption (typical)
- Constellation ST32000647SS internal hard drive:6.2 W
- Momentus Thin internal hard drive:1.4 W
Operating voltage
- Constellation ST32000647SS internal hard drive:5 / 12 V
- Momentus Thin internal hard drive:5 V

Side by side

Differences highlightedShow differences only

Comparison of ST32000647SS, Thin
26 specifications	A Seagate Constellation ST32000647SS internal hard drive Model ST32000647SS View product	B Seagate Momentus Thin internal hard drive Model Thin View product
Features6 differ
HDD capacityDiffers	2 TB	250 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	6-Gb/s SAS,-	Serial ATA
Component forKnown for one	Unknown — not stated by the source	Laptop
Storage drive buffer sizeDiffers	64 MB	16 MB
Average latencyDiffers	4.16 ms	5.6 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	4096
Write speedKnown for one	155 MB/s	Unknown — not stated by the source
Read seek timeKnown for one	8.5 ms	Unknown — not stated by the source
Write seek timeKnown for one	9.5 ms	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	12000000 h	Unknown — not stated by the source
Power2 differ
Power consumption (typical)Differs	6.2 W	1.4 W
Power consumption (idle)Known for one	Unknown — not stated by the source	0.48 W
Operating voltageDiffers	5 / 12 V	5 V
Operational conditions3 differ
Operating temperature (T-T)Differs	5 - 60 °C	0 - 60 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Operating shockDiffers	70 G	400 G
Non-operating shockDiffers	300 G	1000 G
Weight & dimensions4 differ
WidthDiffers	101.8 mm	70.1 mm
DepthDiffers	147 mm	100.5 mm
HeightDiffers	26.1 mm	7 mm
WeightDiffers	655 g	95 g
Other features1 differ
Compatible operating systemsKnown for one	Unknown — not stated by the source	Windows 7
Data transfer rateDiffers	6 Gbit/s	3 Gbit/s
InternalKnown for one	Unknown — not stated by the source	Yes

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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