Samsung 320GB Serial ATA II HDD vs Samsung 500GB HDD

Comparison of 320GB Serial ATA II HDD, 500GB HDD

34 specifications	A Samsung 320GB Serial ATA II HDDView product	B Samsung 500GB HDDView product
Features1 differ
HDD capacityDiffers	320 GB	500 GB
HDD speed	7200 RPM	7200 RPM
HDD size	3.5"	3.5"
Interface	Serial ATA II	Serial ATA II
TypeKnown for one	—Unknown — not stated by the source	HDD
Storage drive buffer size	16 MB	16 MB
Full stroke seek time	18 ms	18 ms
Track to track seek time	0.8 ms	0.8 ms
Average seek time	8.9 ms	8.9 ms
Average latency	4.17 ms	4.17 ms
SMART technologyKnown for one	—Unknown — not stated by the source	Yes
Bytes per sector	512	512
Start/stop cyclesKnown for one	—Unknown — not stated by the source	50000
Mean time between failures (MTBF)	600000 h	600000 h
Poweridentical
Power consumption (typical)	8 W	8 W
Power consumption (standby)Known for one	—Unknown — not stated by the source	1.2 W
Operating voltage	5 / 12 V	5 / 12 V
Operational conditions1 differ
Operating temperature (T-T)	0 - 60 °C	0 - 60 °C
Storage temperature (T-T)	-40 - 70 °C	-40 - 70 °C
Operating relative humidity (H-H)	5 - 90%	5 - 90%
Storage relative humidity (H-H)	5 - 95%	5 - 95%
Operating altitudeKnown for one	—Unknown — not stated by the source	0 - 3000 m
Non-operating altitudeKnown for one	—Unknown — not stated by the source	0 - 12000 m
Operating shock	63 G	63 G
Non-operating shockDiffers	350 G	300 G
Weight & dimensionsidentical
WidthKnown for one	—Unknown — not stated by the source	101.6 mm
DepthKnown for one	—Unknown — not stated by the source	146.1 mm
HeightKnown for one	—Unknown — not stated by the source	25.4 mm
WeightKnown for one	—Unknown — not stated by the source	640 g
Other featuresidentical
Drive ready time	10 s	10 s
Acoustic pressure emissions	2.4 dB	2.4 dB
HDD transfer rateKnown for one	300 Mbit/s	—Unknown — not stated by the source
Power requirementsKnown for one	+5V; +12V	—Unknown — not stated by the source
InternalKnown for one	Yes	—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.