Product comparison · 2 internal hard drives

Seagate 320GB Momentus 5400.5 HDD vs Seagate Momentus 500GB

Key differences

Differences highlightedShow differences only

Comparison of 320GB Momentus 5400.5 HDD, Momentus 500GB
26 specifications	A Seagate 320GB Momentus 5400.5 HDD View product	B Seagate Momentus 500GB View product
Features1 differ
HDD capacityDiffers	320 GB	500 GB
HDD speed	5400 RPM	5400 RPM
Interface	Serial ATA	Serial ATA
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
Read seek time	14 ms	14 ms
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
Mean time between failures (MTBF)Known for one	500000 h	Unknown — not stated by the source
HDD sizeKnown for one	Unknown — not stated by the source	2.5"
Poweridentical
Start-up currentKnown for one	1 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)	0 - 60 °C	0 - 60 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
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	100.3 mm
Height	9.5 mm	9.5 mm
WeightDiffers	98.5 g	98.8 g
Other featuresidentical
Data transfer rateKnown for one	3 Gbit/s	Unknown — not stated by the source
Disks included quantityKnown for one	2 pc(s)	Unknown — not stated by the source
Internal	Yes	Yes
HDD transfer rateKnown for one	Unknown — not stated by the source	300 Mbit/s

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.