Product comparison · 2 internal hard drives

Dell JHP9K internal hard drive vs Dell P7J74 internal hard drive

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

Key differences

The Dell JHP9K internal hard drive has 1,800 RPM more HDD speed than the Dell P7J74 internal hard drive (7200 RPM vs 5400 RPM). The Dell JHP9K internal hard drive has 1" more HDD size than the Dell P7J74 internal hard drive (3.5" vs 2.5"). HDD capacity: 4 TB on the Dell JHP9K internal hard drive, 640 GB on the Dell P7J74 internal hard drive. Interface: NL-SAS on the Dell JHP9K internal hard drive, Serial ATA II on the Dell P7J74 internal hard drive.

HDD capacity
- JHP9K internal hard drive:4 TB
- P7J74 internal hard drive:640 GB
HDD speed
- JHP9K internal hard drive:7200 RPM
- P7J74 internal hard drive:5400 RPM
HDD size
- JHP9K internal hard drive:3.5"
- P7J74 internal hard drive:2.5"
Interface
- JHP9K internal hard drive:NL-SAS
- P7J74 internal hard drive:Serial ATA II

Side by side

Differences highlightedShow differences only

Comparison of JHP9K, P7J74
8 specifications	A Dell JHP9K internal hard drive Model JHP9K View product	B Dell P7J74 internal hard drive Model P7J74 View product
Features4 differ
HDD capacityDiffers	4 TB	640 GB
HDD speedDiffers	7200 RPM	5400 RPM
HDD sizeDiffers	3.5"	2.5"
InterfaceDiffers	NL-SAS	Serial ATA II
HDD interface transfer rateKnown for one	Unknown — not stated by the source	3 Gbit/s
Poweridentical
Operating voltageKnown for one	5 / 12 V	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.

More internal hard drive comparisons

All internal hard drive comparisons