HP Intel Xeon E5405, Ref vs HP Intel Xeon E5420, Ref

Key differences

The HP Intel Xeon E5420, Ref has 0.5 GHz more processor base frequency than the HP Intel Xeon E5405, Ref (2.5 GHz vs 2 GHz). Only the HP Intel Xeon E5420, Ref has idle States. Only the HP Intel Xeon E5420, Ref has enhanced Intel SpeedStep Technology. Processor model: E5405 on the HP Intel Xeon E5405, Ref, E5420 on the HP Intel Xeon E5420, Ref.

• Processor model
  • Intel Xeon E5405, Ref:E5405
  • Intel Xeon E5420, Ref:E5420
• Processor base frequency
  • Intel Xeon E5405, Ref:2 GHz
  • Intel Xeon E5420, Ref:2.5 GHz
• Idle States
  • Intel Xeon E5405, Ref:No
  • Intel Xeon E5420, Ref:Yes
• Enhanced Intel SpeedStep Technology
  • Intel Xeon E5405, Ref:No
  • Intel Xeon E5420, Ref:Yes
• Intel Demand Based Switching
  • Intel Xeon E5405, Ref:No
  • Intel Xeon E5420, Ref:Yes