Product comparison · 2 internal hard drives

Seagate 500GB 2.5" SATA II vs Seagate Momentus 5400.4 250GB

11specifications compared
4differ
7identical
18known for one product only

Key differences

HDD capacity
- 500GB 2.5" SATA II:500 GB
- Momentus 5400.4 250GB:250 GB
Interface
- 500GB 2.5" SATA II:Serial ATA II
- Momentus 5400.4 250GB:Serial ATA
Depth
- 500GB 2.5" SATA II:100.5 mm
- Momentus 5400.4 250GB:100.2 mm
Weight
- 500GB 2.5" SATA II:98.8 g
- Momentus 5400.4 250GB:102 g

Side by side

Differences highlightedShow differences only

Comparison of 500GB 2.5" SATA II, Momentus 5400.4 250GB
29 specifications	A Seagate 500GB 2.5" SATA II View product	B Seagate Momentus 5400.4 250GB View product
Features2 differ
HDD capacityDiffers	500 GB	250 GB
HDD speed	5400 RPM	5400 RPM
HDD sizeKnown for one	2.5"	Unknown — not stated by the source
InterfaceDiffers	Serial ATA II	Serial ATA
TypeKnown for one	HDD	Unknown — not stated by the source
Component for	Laptop	Laptop
Storage drive buffer size	8 MB	8 MB
HDD number of headsKnown for one	4	Unknown — not stated by the source
Average latency	5.6 ms	5.6 ms
Bytes per sectorKnown for one	512	Unknown — not stated by the source
Start/stop cyclesKnown for one	600000	Unknown — not stated by the source
Read seek timeKnown for one	Unknown — not stated by the source	12 ms
Write seek timeKnown for one	Unknown — not stated by the source	14 ms
Poweridentical
Power consumption (standby)Known for one	0.22 W	Unknown — not stated by the source
Power consumption (idle)Known for one	0.81 W	Unknown — not stated by the source
Power consumption (read)Known for one	2.6 W	Unknown — not stated by the source
Power consumption (write)Known for one	2.85 W	Unknown — not stated by the source
Operating voltageKnown for one	5 V	Unknown — not stated by the source
Start-up current	1 A	1 A
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	350 G	Unknown — not stated by the source
Non-operating shockKnown for one	1000 G	Unknown — not stated by the source
Weight & dimensions2 differ
Width	69.8 mm	69.8 mm
DepthDiffers	100.5 mm	100.2 mm
Height	9.5 mm	9.5 mm
WeightDiffers	98.8 g	102 g
Other featuresidentical
Data transfer rateKnown for one	Unknown — not stated by the source	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.

More internal hard drive comparisons

All internal hard drive comparisons