Product comparison · 2 internal hard drives

Samsung 500GB Serial ATA II HDD, 20-pk vs Samsung HM250JI- 250GB HDD

Key differences

HDD capacity
- 500GB Serial ATA II HDD, 20-pk:500 GB
- HM250JI- 250GB HDD:250 GB
HDD speed
- 500GB Serial ATA II HDD, 20-pk:7200 RPM
- HM250JI- 250GB HDD:5400 RPM
HDD size
- 500GB Serial ATA II HDD, 20-pk:3.5"
- HM250JI- 250GB HDD:2.5"
Interface
- 500GB Serial ATA II HDD, 20-pk:Serial ATA II
- HM250JI- 250GB HDD:Serial ATA
Storage drive buffer size
- 500GB Serial ATA II HDD, 20-pk:16 MB
- HM250JI- 250GB HDD:8 MB
Full stroke seek time
- 500GB Serial ATA II HDD, 20-pk:18 ms
- HM250JI- 250GB HDD:22 ms
Track to track seek time
- 500GB Serial ATA II HDD, 20-pk:0.8 ms
- HM250JI- 250GB HDD:2 ms
Average seek time
- 500GB Serial ATA II HDD, 20-pk:8.9 ms
- HM250JI- 250GB HDD:12 ms

Differences highlightedShow differences only

Comparison of 500GB Serial ATA II HDD, 20-pk, HM250JI- 250GB HDD
29 specifications	A Samsung 500GB Serial ATA II HDD, 20-pk View product	B Samsung HM250JI- 250GB HDD View product
Features10 differ
HDD capacityDiffers	500 GB	250 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	Serial ATA II	Serial ATA
Storage drive buffer sizeDiffers	16 MB	8 MB
Full stroke seek timeDiffers	18 ms	22 ms
Track to track seek timeDiffers	0.8 ms	2 ms
Average seek timeDiffers	8.9 ms	12 ms
Average latencyDiffers	4.17 ms	5.6 ms
Bytes per sector	512	512
Start/stop cyclesKnown for one	50000	Unknown — not stated by the source
Mean time between failures (MTBF)Differs	600000 h	330000 h
Power3 differ
Power consumption (typical)Differs	8 W	2 W
Power consumption (standby)Differs	1.2 W	0.25 W
Operating voltageDiffers	5 / 12 V	5 V
Power consumption (PowerSave)Known for one	Unknown — not stated by the source	0.20 W
Operational conditions5 differ
Operating temperature (T-T)Differs	0 - 60 °C	5 - 55 °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 altitudeDiffers	0 - 3000 m	-300 - 3000 m
Non-operating altitudeDiffers	0 - 12000 m	-300 - 15000 m
Operating shockDiffers	63 G	325 G
Non-operating shockDiffers	300 G	1000 G
Other features2 differ
Power requirementsDiffers	+5V; +12V	+5V
Drive ready timeDiffers	10 s	3.5 s
Internal	Yes	Yes
Quantity per boxKnown for one	20 pc(s)	Unknown — not stated by the source
Acoustic pressure emissions	2.4 dB	2.4 dB

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.