HP Z620 Xeon E5-2665 8C 2.40GHz 20MB vs HP Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU

Key differences

The HP Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU has 0.9 GHz more processor base frequency than the HP Z620 Xeon E5-2665 8C 2.40GHz 20MB (3.3 GHz vs 2.4 GHz). The HP Z620 Xeon E5-2665 8C 2.40GHz 20MB has 4 more processor cores than the HP Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU (8 vs 4). The HP Z620 Xeon E5-2665 8C 2.40GHz 20MB has 8 more processor threads than the HP Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU (16 vs 8). Processor model: E5-2665 on the HP Z620 Xeon E5-2665 8C 2.40GHz 20MB, E5-2643 on the HP Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU. Compatibility: HP Z620 on the HP Z620 Xeon E5-2665 8C 2.40GHz 20MB, HP Z820 on the HP Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU.

• Processor model
  • Z620 Xeon E5-2665 8C 2.40GHz 20MB:E5-2665
  • Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:E5-2643
• Processor base frequency
  • Z620 Xeon E5-2665 8C 2.40GHz 20MB:2.4 GHz
  • Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:3.3 GHz
• Processor cores
  • Z620 Xeon E5-2665 8C 2.40GHz 20MB:8
  • Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:4
• Processor threads
  • Z620 Xeon E5-2665 8C 2.40GHz 20MB:16
  • Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:8
• Processor boost frequency
  • Z620 Xeon E5-2665 8C 2.40GHz 20MB:3.1 GHz
  • Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:3.5 GHz
• Processor cache
  • Z620 Xeon E5-2665 8C 2.40GHz 20MB:20 MB
  • Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:10 MB
• Thermal Design Power (TDP)
  • Z620 Xeon E5-2665 8C 2.40GHz 20MB:115 W
  • Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:130 W
• CPU multiplier (bus/core ratio)
  • Z620 Xeon E5-2665 8C 2.40GHz 20MB:31
  • Z820 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:35