Product comparison · 2 internal hard drives

Samsung 640GB HDD vs Samsung HD502IJ + 20PK Kit

24specifications compared
4differ
20identical
5known for one product only

Key differences

The Samsung 640GB HDD has 140 GB more HDD capacity than the Samsung HD502IJ + 20PK Kit (640 GB vs 500 GB). The Samsung 640GB HDD has 0.38 W more power consumption (standby) than the Samsung HD502IJ + 20PK Kit (1.18 W vs 0.8 W). The Samsung HD502IJ + 20PK Kit has 50 G more non-operating shock than the Samsung 640GB HDD (350 G vs 300 G).

HDD capacity
- 640GB HDD:640 GB
- HD502IJ + 20PK Kit:500 GB
Power consumption (standby)
- 640GB HDD:1.18 W
- HD502IJ + 20PK Kit:0.8 W
Non-operating shock
- 640GB HDD:300 G
- HD502IJ + 20PK Kit:350 G
Drive ready time
- 640GB HDD:12 s
- HD502IJ + 20PK Kit:8 s

Side by side

Differences highlightedShow differences only

Comparison of 640GB HDD, HD502IJ + 20PK Kit
29 specifications	A Samsung 640GB HDD View product	B Samsung HD502IJ + 20PK Kit View product
Features1 differ
HDD capacityDiffers	640 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	HDD	Unknown — not stated by the source
Storage drive buffer size	16 MB	16 MB
Average seek time	8.9 ms	8.9 ms
Average latency	4.17 ms	4.17 ms
Bytes per sector	512	512
Start/stop cycles	50000	50000
Power1 differ
Power consumption (typical)Known for one	8.56 W	Unknown — not stated by the source
Power consumption (standby)Differs	1.18 W	0.8 W
Power consumption (PowerSave)Known for one	1.18 W	Unknown — not stated by the source
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 altitude	-300 - 3000 m	-300 - 3000 m
Non-operating altitude	-300 - 12000 m	-300 - 12000 m
Operating shock	70 G	70 G
Non-operating shockDiffers	300 G	350 G
Weight & dimensionsidentical
Width	101.5 mm	101.5 mm
Depth	147 mm	147 mm
Height	26.1 mm	26.1 mm
Weight	610 g	610 g
Other features1 differ
Drive ready timeDiffers	12 s	8 s
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	101.5 x 147 x 26.1 mm
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.

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