Product comparison · 2 internal hard drives

HP 634919-001 internal hard drive vs HP 640GB SATA

3specifications compared
2differ
1identical
7known for one product only

Key differences

The HP 640GB SATA has 140 GB more HDD capacity than the HP 634919-001 internal hard drive (640 GB vs 500 GB). Interface: Serial ATA on the HP 634919-001 internal hard drive, Serial ATA II on the HP 640GB SATA.

HDD capacity
- 634919-001 internal hard drive:500 GB
- 640GB SATA:640 GB
Interface
- 634919-001 internal hard drive:Serial ATA
- 640GB SATA:Serial ATA II

Side by side

Differences highlightedShow differences only

Comparison of 634919-001, 640GB SATA
10 specifications	A HP 634919-001 internal hard drive Model 634919-001 View product	B HP 640GB SATA View product
Features2 differ
HDD capacityDiffers	500 GB	640 GB
HDD speed	7200 RPM	7200 RPM
HDD sizeKnown for one	2.5"	Unknown — not stated by the source
InterfaceDiffers	Serial ATA	Serial ATA II
Component forKnown for one	Laptop	Unknown — not stated by the source
TypeKnown for one	Unknown — not stated by the source	HDD
HDD interface transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
Native Command Queuing (NCQ)Known for one	Unknown — not stated by the source	Yes
Poweridentical
Operating voltageKnown for one	5 V	Unknown — not stated by the source
Other featuresidentical
Compatible productsKnown for one	EliteBook 8460p, EliteBook 8560p, EliteBook 8460w, ProBook 6440b, ProBook 6445b, ProBook 6455b, ProBook 6560b	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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