Dell D4RPH internal hard drive vs Dell P7J74 internal hard drive

Key differences

The Dell D4RPH internal hard drive has 1,800 RPM more HDD speed than the Dell P7J74 internal hard drive (7200 RPM vs 5400 RPM). The Dell D4RPH internal hard drive has 1" more HDD size than the Dell P7J74 internal hard drive (3.5" vs 2.5"). The Dell D4RPH internal hard drive has 3 Gbit/s more HDD interface transfer rate than the Dell P7J74 internal hard drive (6 Gbit/s vs 3 Gbit/s). HDD capacity: 1 TB on the Dell D4RPH internal hard drive, 640 GB on the Dell P7J74 internal hard drive. Interface: NL-SAS on the Dell D4RPH internal hard drive, Serial ATA II on the Dell P7J74 internal hard drive.

• HDD capacity
  • D4RPH internal hard drive:1 TB
  • P7J74 internal hard drive:640 GB
• HDD speed
  • D4RPH internal hard drive:7200 RPM
  • P7J74 internal hard drive:5400 RPM
• HDD size
  • D4RPH internal hard drive:3.5"
  • P7J74 internal hard drive:2.5"
• Interface
  • D4RPH internal hard drive:NL-SAS
  • P7J74 internal hard drive:Serial ATA II
• HDD interface transfer rate
  • D4RPH internal hard drive:6 Gbit/s
  • P7J74 internal hard drive:3 Gbit/s