Intel Core

Sandy Bridge Processors

Intel Core i3

Intel Core i3-2105 3.1Ghz = 2 Cores / 4 Threads
Intel Core i3-21253.3Ghz = 2 Cores / 4 Threads

Intel Core i5

Intel Core i5-2405S 2.5Ghz = 4 Cores / 4 Threads, Turbo
Intel Core i5-2500K 3.3Ghz = 4 Cores / 4 Threads, Turbo Unlocked for Overclocking

Intel Core i7

Intel Core i7-2600K 3.4Ghz = 4 Cores / 8 Threads, Turbo Unlocked for Overclocking
Intel Core i7-2700K 3.5Ghz = 4 Cores / 8 Threads, Turbo Unlocked for Overclocking
This are supported CPU which is highly recommended by  Tonymacx86