Product comparison · 2 internal hard drives

HP 500GB SATA 3G 7200rpm NCQ vs Samsung HD642JJ + 20PK Kit

4specifications compared
1differ
3identical
28known for one product only

Key differences

The Samsung HD642JJ + 20PK Kit has 140 GB more HDD capacity than the HP 500GB SATA 3G 7200rpm NCQ (640 GB vs 500 GB).

HDD capacity
- 500GB SATA 3G 7200rpm NCQ:500 GB
- HD642JJ + 20PK Kit:640 GB

Side by side

Differences highlightedShow differences only

Comparison of 500GB SATA 3G 7200rpm NCQ, HD642JJ + 20PK Kit
32 specifications	A HP 500GB SATA 3G 7200rpm NCQ View product	B Samsung HD642JJ + 20PK Kit View product
Features1 differ
HDD capacityDiffers	500 GB	640 GB
HDD speed	7200 RPM	7200 RPM
HDD sizeKnown for one	Unknown — not stated by the source	3.5"
Interface	Serial ATA II	Serial ATA II
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	16 MB
Average seek timeKnown for one	Unknown — not stated by the source	8.9 ms
Average latencyKnown for one	Unknown — not stated by the source	4.17 ms
Bytes per sectorKnown for one	Unknown — not stated by the source	512
Start/stop cyclesKnown for one	Unknown — not stated by the source	50000
TypeKnown for one	HDD	Unknown — not stated by the source
HDD interface transfer rateKnown for one	3 Gbit/s	Unknown — not stated by the source
Native Command Queuing (NCQ)Known for one	Yes	Unknown — not stated by the source
Poweridentical
Power consumption (typical)Known for one	Unknown — not stated by the source	8.56 W
Power consumption (standby)Known for one	Unknown — not stated by the source	1.18 W
Power consumption (PowerSave)Known for one	Unknown — not stated by the source	1.18 W
Operating voltageKnown for one	Unknown — not stated by the source	5 / 12 V
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	-300 - 3000 m
Non-operating altitudeKnown for one	Unknown — not stated by the source	-300 - 12000 m
Operating shockKnown for one	Unknown — not stated by the source	70 G
Non-operating shockKnown for one	Unknown — not stated by the source	300 G
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	101.5 mm
DepthKnown for one	Unknown — not stated by the source	147 mm
HeightKnown for one	Unknown — not stated by the source	26.1 mm
WeightKnown for one	Unknown — not stated by the source	610 g
Other featuresidentical
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	101.5 x 147 x 26.1 mm
Drive ready timeKnown for one	Unknown — not stated by the source	12 s
Internal	Yes	Yes
Windows operating systems supportedKnown 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.

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