Product comparison · 2 internal hard drives

HP 500GB SATA 3Gb/s vs HP 640GB SATA 5400RPM

Key differences

Differences highlightedShow differences only

Comparison of 500GB SATA 3Gb/s, 640GB SATA 5400RPM
9 specifications	A HP 500GB SATA 3Gb/s View product	B HP 640GB SATA 5400RPM View product
Features3 differ
HDD capacityDiffers	500 GB	640 GB
HDD speedDiffers	7200 RPM	5400 RPM
InterfaceDiffers	Serial ATA II	Serial ATA
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
HDD sizeKnown for one	Unknown — not stated by the source	2.5"
Poweridentical
Operating voltageKnown for one	Unknown — not stated by the source	5 V
Other featuresidentical
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.