Socket 775       512K       Bus 800

 Sk 775    1M    Bus 800

Socket 775 2M Duo Core Bus 800

Socket 775    2M     Bus 800

Socket 775   2M    Duo Core Bus 1066

Sk 775 3M Core 2 Duo  Bus 1066

 sk 1150 4M  2 cores, 4threads

SK 1156   4M   2 cores, 4 threads 

Sk 775 4M Core 2 Quad   Bus 1333

Socket 775,6M Core 2 Duo,Bus 1333

 Sk 775 4M Core 2 Quad Bus 1333

Sk 775 6M Core 2 Quad Bus 1333

 sk 1156   4M    2 cores,  4threads

SK 1156 8M Cache L3, 4 Cores, 4 threads, TDP 95W