Dell Xeon E5640 vs HP Intel Xeon E5645

Key differences

The Dell Xeon E5640 has 0.26 GHz more processor base frequency than the HP Intel Xeon E5645 (2.66 GHz vs 2.4 GHz). The HP Intel Xeon E5645 has 2 more processor cores than the Dell Xeon E5640 (6 vs 4). The HP Intel Xeon E5645 has 4 more processor threads than the Dell Xeon E5640 (12 vs 8). Processor model: E5640 on the Dell Xeon E5640, E5645 on the HP Intel Xeon E5645. Memory clock speeds supported by processor: 800,1066 MHz on the Dell Xeon E5640, 800,1066,1333 MHz on the HP Intel Xeon E5645.

• Processor model
  • Xeon E5640:E5640
  • Intel Xeon E5645:E5645
• Processor base frequency
  • Xeon E5640:2.66 GHz
  • Intel Xeon E5645:2.4 GHz
• Processor cores
  • Xeon E5640:4
  • Intel Xeon E5645:6
• Processor threads
  • Xeon E5640:8
  • Intel Xeon E5645:12
• Processor boost frequency
  • Xeon E5640:2.93 GHz
  • Intel Xeon E5645:2.67 GHz
• Thermal Design Power (TDP)
  • Xeon E5640:80 W
  • Intel Xeon E5645:90 W
• Memory bandwidth supported by processor (max)
  • Xeon E5640:25.6 GB/s
  • Intel Xeon E5645:32 GB/s
• Memory clock speeds supported by processor
  • Xeon E5640:800,1066 MHz
  • Intel Xeon E5645:800,1066,1333 MHz