What are the differences between the different Intel Core desktop processors?

Intel® Core™ i7 Desktop Processor Extreme Edition Family

Socket type: LGA 1366

  • Intel® Core™ i7-975 Processor Extreme Edition (8M Cache, 3.33 GHz, 6.40 GT/s Intel® QPI)
  • Intel® Core™ i7-965 Processor Extreme Edition (8M Cache, 3.20 GHz, 6.40 GT/s Intel® QPI)

Intel® Core™ i7 Desktop Processor Family

Socket type: LGA 1366

  • Intel® Core™ i7-960 Processor (8M Cache, 3.20 GHz, 4.80 GT/s Intel® QPI)
  • Intel® Core™ i7-950 Processor (8M Cache, 3.06 GHz, 4.80 GT/s Intel® QPI)
  • Intel® Core™ i7-940 Processor (8M Cache, 2.93 GHz, 4.80 GT/s Intel® QPI)
  • Intel® Core™ i7-920 Processor (8M Cache, 2.66 GHz, 4.80 GT/s Intel® QPI)

Socket type: LGA 1156

  • Intel® Core™ i7-870 Processor (8M Cache, 2.93 GHz)
  • Intel® Core™ i7-860 Processor (8M Cache, 2.80 GHz)

Intel® Core™ i5 Desktop Processor Family

Socket type: LGA 1156

  • Intel® Core™ i5-750 Processor (8M Cache, 2.66 GHz)