Product comparison · 2 internal hard drives

HP 40GB, ATA/100, 7200 rpm vs HP 500GB, SATA, 3G, NCQ, 7200 rpm

6specifications compared
2differ
4identical
6known for one product only

Key differences

The HP 500GB, SATA, 3G, NCQ, 7200 rpm has 460 GB more HDD capacity than the HP 40GB, ATA/100, 7200 rpm (500 GB vs 40 GB). Interface: Ultra-ATA/100 on the HP 40GB, ATA/100, 7200 rpm, Serial ATA II on the HP 500GB, SATA, 3G, NCQ, 7200 rpm.

HDD capacity
- 40GB, ATA/100, 7200 rpm:40 GB
- 500GB, SATA, 3G, NCQ, 7200 rpm:500 GB
Interface
- 40GB, ATA/100, 7200 rpm:Ultra-ATA/100
- 500GB, SATA, 3G, NCQ, 7200 rpm:Serial ATA II

Side by side

Differences highlightedShow differences only

Comparison of 40GB, ATA/100, 7200 rpm, 500GB, SATA, 3G, NCQ, 7200 rpm
12 specifications	A HP 40GB, ATA/100, 7200 rpm View product	B HP 500GB, SATA, 3G, NCQ, 7200 rpm View product
Features2 differ
HDD capacityDiffers	40 GB	500 GB
HDD speed	7200 RPM	7200 RPM
HDD size	3.5"	3.5"
InterfaceDiffers	Ultra-ATA/100	Serial ATA II
Type	HDD	HDD
Storage drive buffer sizeKnown for one	Unknown — not stated by the source	16 MB
HDD interface transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
SMART technologyKnown for one	Unknown — not stated by the source	Yes
Poweridentical
Operating voltage	5 / 12 V	5 / 12 V
Other featuresidentical
Data transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
HDD transfer rateKnown for one	100 Mbit/s	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.

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