Product comparison · 2 internal hard drives

Seagate 100GB Barracuda 7200.7 vs Seagate Momentus LP 2.5" 640GB

6specifications compared
5differ
1identical
26known for one product only

Key differences

The Seagate Momentus LP 2.5" 640GB has 540 GB more HDD capacity than the Seagate 100GB Barracuda 7200.7 (640 GB vs 100 GB). The Seagate 100GB Barracuda 7200.7 has 1,800 RPM more HDD speed than the Seagate Momentus LP 2.5" 640GB (7200 RPM vs 5400 RPM). The Seagate Momentus LP 2.5" 640GB has 6 MB more storage drive buffer size than the Seagate 100GB Barracuda 7200.7 (8 MB vs 2 MB). Interface: Ultra-ATA/100 on the Seagate 100GB Barracuda 7200.7, Serial ATA II on the Seagate Momentus LP 2.5" 640GB.

HDD capacity
- 100GB Barracuda 7200.7:100 GB
- Momentus LP 2.5" 640GB:640 GB
HDD speed
- 100GB Barracuda 7200.7:7200 RPM
- Momentus LP 2.5" 640GB:5400 RPM
Interface
- 100GB Barracuda 7200.7:Ultra-ATA/100
- Momentus LP 2.5" 640GB:Serial ATA II
Storage drive buffer size
- 100GB Barracuda 7200.7:2 MB
- Momentus LP 2.5" 640GB:8 MB
Data transfer rate
- 100GB Barracuda 7200.7:0.1 Gbit/s
- Momentus LP 2.5" 640GB:3 Gbit/s

Side by side

Differences highlightedShow differences only

Comparison of 100GB Barracuda 7200.7, Momentus LP 2.5" 640GB
32 specifications	A Seagate 100GB Barracuda 7200.7 View product	B Seagate Momentus LP 2.5" 640GB View product
Features4 differ
HDD capacityDiffers	100 GB	640 GB
HDD speedDiffers	7200 RPM	5400 RPM
InterfaceDiffers	Ultra-ATA/100	Serial ATA II
Storage drive buffer sizeDiffers	2 MB	8 MB
Average latencyKnown for one	4.16 ms	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	600.000 h	Unknown — not stated by the source
HDD sizeKnown for one	Unknown — not stated by the source	2.5"
Component forKnown for one	Unknown — not stated by the source	Laptop
Poweridentical
Start-up currentKnown for one	2.80 A	Unknown — not stated by the source
Operating voltageKnown for one	Unknown — not stated by the source	5 V
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 60 °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	63 G	Unknown — not stated by the source
Non-operating shockKnown for one	350 G	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	101.6 mm	Unknown — not stated by the source
DepthKnown for one	147 mm	Unknown — not stated by the source
HeightKnown for one	26 mm	Unknown — not stated by the source
WeightKnown for one	635 g	Unknown — not stated by the source
Other features1 differ
Drive device speedKnown for one	7200 RPM	Unknown — not stated by the source
Ethernet LANKnown for one	No	Unknown — not stated by the source
Data transfer rateDiffers	0.1 Gbit/s	3 Gbit/s
Drive device, transfer rateKnown for one	100 MB/s	Unknown — not stated by the source
Fibre ChannelKnown for one	No	Unknown — not stated by the source
FireWire 400Known for one	No	Unknown — not stated by the source
FireWire 800Known for one	No	Unknown — not stated by the source
Maximum data transfer rateKnown for one	100 Mbit/s	Unknown — not stated by the source
USB 2.0 ports quantityKnown for one	0	Unknown — not stated by the source
USB 3.2 Gen 1 (3.1 Gen 1) ports quantityKnown for one	0	Unknown — not stated by the source
USB poweredKnown for one	No	Unknown — not stated by the source
Product colourKnown for one	Unknown — not stated by the source	Black
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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