Product comparison · 2 internal hard drives

HP 146GB SAS HDD vs HP 640GB SATA 7200rpm 2.5"

5specifications compared
5differ
0identical
2known for one product only

Key differences

The HP 640GB SATA 7200rpm 2.5" has 494 GB more HDD capacity than the HP 146GB SAS HDD (640 GB vs 146 GB). The HP 146GB SAS HDD has 7,800 RPM more HDD speed than the HP 640GB SATA 7200rpm 2.5" (15000 RPM vs 7200 RPM). The HP 146GB SAS HDD has 1" more HDD size than the HP 640GB SATA 7200rpm 2.5" (3.5" vs 2.5"). Interface: SAS on the HP 146GB SAS HDD, Serial ATA on the HP 640GB SATA 7200rpm 2.5". Operating voltage: 5 / 12 V on the HP 146GB SAS HDD, 5 V on the HP 640GB SATA 7200rpm 2.5".

HDD capacity
- 146GB SAS HDD:146 GB
- 640GB SATA 7200rpm 2.5":640 GB
HDD speed
- 146GB SAS HDD:15000 RPM
- 640GB SATA 7200rpm 2.5":7200 RPM
HDD size
- 146GB SAS HDD:3.5"
- 640GB SATA 7200rpm 2.5":2.5"
Interface
- 146GB SAS HDD:SAS
- 640GB SATA 7200rpm 2.5":Serial ATA
Operating voltage
- 146GB SAS HDD:5 / 12 V
- 640GB SATA 7200rpm 2.5":5 V

Side by side

Differences highlightedShow differences only

Comparison of 146GB SAS HDD, 640GB SATA 7200rpm 2.5"
7 specifications	A HP 146GB SAS HDD View product	B HP 640GB SATA 7200rpm 2.5"View product
Features4 differ
HDD capacityDiffers	146 GB	640 GB
HDD speedDiffers	15000 RPM	7200 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	SAS	Serial ATA
TypeKnown for one	HDD	Unknown — not stated by the source
Power1 differ
Operating voltageDiffers	5 / 12 V	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.

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