Product comparison · 2 internal hard drives

HP 40GB 7200rpm IDE vs HP 80GB 2.5" 7.2k SATA 3Gb/s

Key differences

HDD capacity
- 40GB 7200rpm IDE:40 GB
- 80GB 2.5" 7.2k SATA 3Gb/s:80 GB
HDD size
- 40GB 7200rpm IDE:3.5"
- 80GB 2.5" 7.2k SATA 3Gb/s:2.5"
Interface
- 40GB 7200rpm IDE:EIDE/ATA
- 80GB 2.5" 7.2k SATA 3Gb/s:Serial ATA
Operating voltage
- 40GB 7200rpm IDE:5 / 12 V
- 80GB 2.5" 7.2k SATA 3Gb/s:5 V
Operating temperature (T-T)
- 40GB 7200rpm IDE:5 - 60 °C
- 80GB 2.5" 7.2k SATA 3Gb/s:0 - 60 °C
Operating relative humidity (H-H)
- 40GB 7200rpm IDE:10 - 90%
- 80GB 2.5" 7.2k SATA 3Gb/s:5 - 90%

Differences highlightedShow differences only

Comparison of 40GB 7200rpm IDE, 80GB 2.5" 7.2k SATA 3Gb/s
16 specifications	A HP 40GB 7200rpm IDE View product	B HP 80GB 2.5" 7.2k SATA 3Gb/s View product
Features3 differ
HDD capacityDiffers	40 GB	80 GB
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	EIDE/ATA	Serial ATA
Native Command Queuing (NCQ)Known for one	Unknown — not stated by the source	Yes
Power1 differ
Operating voltageDiffers	5 / 12 V	5 V
Operational conditions2 differ
Operating temperature (T-T)Differs	5 - 60 °C	0 - 60 °C
Operating relative humidity (H-H)Differs	10 - 90%	5 - 90%
Other featuresidentical
Data transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
Compatible productsKnown for one	Unknown — not stated by the source	HP Compaq dc7900

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.