Product comparison · 2 internal hard drives

Seagate Momentus 100GB internal hard drive 5400 RPM 8 MB 2.5" Ultra-ATA/100 vs Seagate 120GB 2.5

18specifications compared
5differ
13identical
23known for one product only

Key differences

HDD capacity
- Momentus 100GB internal hard drive 5400 RPM 8 MB 2.5" Ultra-ATA/100:100 GB
- 120GB 2.5:120 GB
Interface
- Momentus 100GB internal hard drive 5400 RPM 8 MB 2.5" Ultra-ATA/100:Ultra-ATA/100
- 120GB 2.5:Serial ATA
HDD number of heads
- Momentus 100GB internal hard drive 5400 RPM 8 MB 2.5" Ultra-ATA/100:256
- 120GB 2.5:3
Read seek time
- Momentus 100GB internal hard drive 5400 RPM 8 MB 2.5" Ultra-ATA/100:22 ms
- 120GB 2.5:11 ms
Write seek time
- Momentus 100GB internal hard drive 5400 RPM 8 MB 2.5" Ultra-ATA/100:24 ms
- 120GB 2.5:13 ms

Side by side

Differences highlightedShow differences only

Comparison of 100GB, 120GB 2.5
41 specifications	A Seagate Momentus 100GB internal hard drive 5400 RPM 8 MB 2.5" Ultra-ATA/100 Model 100GB View product	B Seagate 120GB 2.5 View product
Features5 differ
HDD capacityDiffers	100 GB	120 GB
HDD speed	5400 RPM	5400 RPM
HDD size	2.5"	2.5"
InterfaceDiffers	Ultra-ATA/100	Serial ATA
TypeKnown for one	Unknown — not stated by the source	HDD
Component for	Laptop	Laptop
Storage drive buffer size	8 MB	8 MB
HDD number of headsDiffers	256	3
Read seek timeDiffers	22 ms	11 ms
Write seek timeDiffers	24 ms	13 ms
Average latency	5.6 ms	5.6 ms
HDD number of cylindersKnown for one	1024	Unknown — not stated by the source
Average seek timeKnown for one	11 ms	Unknown — not stated by the source
Poweridentical
Power consumption (standby)	0.2 W	0.2 W
Power consumption (idle)Known for one	Unknown — not stated by the source	0.6 W
Power consumption (read)Known for one	Unknown — not stated by the source	1.9 W
Power consumption (write)Known for one	Unknown — not stated by the source	1.8 W
Operating voltage	5 V	5 V
Start-up current	1 A	1 A
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
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 90%
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	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 shock	350 G	350 G
Non-operating shockKnown for one	Unknown — not stated by the source	800 G
Weight & dimensionsidentical
Width	69.8 mm	69.8 mm
Depth	100.2 mm	100.2 mm
Height	9.5 mm	9.5 mm
Weight	102 g	102 g
Other featuresidentical
Windows operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Linux operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Dimensions (WxDxH)Known for one	69.85 x 100.2 x 9.5 mm	Unknown — not stated by the source
Drive device, transfer rateKnown for one	100 MB/s	Unknown — not stated by the source
External power adapterKnown for one	No	Unknown — not stated by the source
InternalKnown for one	Yes	Unknown — not stated by the source
Mac compatibilityKnown for one	No	Unknown — not stated by the source
Maximum data transfer rateKnown for one	352 Mbit/s	Unknown — not stated by the source
Plug and PlayKnown for one	Yes	Unknown — not stated by the source
USB poweredKnown for one	No	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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