Core 2 is an architecture released in 2006. There are 1,2 and 4 core processors.
1st generation 65 nanometer.
2nd generation 45 nanometer.
Core i is an architecture released in 2008. There are 2, 4 and 6 core processors with and without hyperthreading.
1st generation 45 nanometer.
2nd generation 32 nanometer.
3rd generation 22 nanometer.
4th generation 22 nanometer.
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