Product comparison · 2 internal hard drives

Seagate 15K.2 SAS 73GB vs Seagate Momentus LP 2.5" 640GB

7specifications compared
4differ
3identical
15known for one product only

Key differences

The Seagate Momentus LP 2.5" 640GB has 567 GB more HDD capacity than the Seagate 15K.2 SAS 73GB (640 GB vs 73 GB). The Seagate 15K.2 SAS 73GB has 9,600 RPM more HDD speed than the Seagate Momentus LP 2.5" 640GB (15000 RPM vs 5400 RPM). The Seagate 15K.2 SAS 73GB has 8 MB more storage drive buffer size than the Seagate Momentus LP 2.5" 640GB (16 MB vs 8 MB). Interface: SAS on the Seagate 15K.2 SAS 73GB, Serial ATA II on the Seagate Momentus LP 2.5" 640GB.

HDD capacity
- 15K.2 SAS 73GB:73 GB
- Momentus LP 2.5" 640GB:640 GB
HDD speed
- 15K.2 SAS 73GB:15000 RPM
- Momentus LP 2.5" 640GB:5400 RPM
Interface
- 15K.2 SAS 73GB:SAS
- Momentus LP 2.5" 640GB:Serial ATA II
Storage drive buffer size
- 15K.2 SAS 73GB:16 MB
- Momentus LP 2.5" 640GB:8 MB

Side by side

Differences highlightedShow differences only

Comparison of 15K.2 SAS 73GB, Momentus LP 2.5" 640GB
22 specifications	A Seagate 15K.2 SAS 73GB View product	B Seagate Momentus LP 2.5" 640GB View product
Features4 differ
HDD capacityDiffers	73 GB	640 GB
HDD speedDiffers	15000 RPM	5400 RPM
InterfaceDiffers	SAS	Serial ATA II
Storage drive buffer sizeDiffers	16 MB	8 MB
Average latencyKnown for one	2 ms	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	1600000 h	Unknown — not stated by the source
Component forKnown for one	Unknown — not stated by the source	Laptop
Operational conditionsidentical
Operating temperature (T-T)Known for one	5 - 55 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-40 - 70 °C	Unknown — not stated by the source
Operating shockKnown for one	20 G	Unknown — not stated by the source
Non-operating shockKnown for one	300 G	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	70.1 mm	Unknown — not stated by the source
DepthKnown for one	100.5 mm	Unknown — not stated by the source
HeightKnown for one	15 mm	Unknown — not stated by the source
WeightKnown for one	195 g	Unknown — not stated by the source
Other featuresidentical
Drive device, transfer rateKnown for one	600 MB/s	Unknown — not stated by the source
Product colourKnown for one	Unknown — not stated by the source	Black
Data transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
Windows operating systems supportedKnown 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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