WHAT'S THE DIFFERENCE BETWEEN CORE I3, CORE I5, CORE I7...??

Core i3:
* Entry level processor.
* 2-4 Cores
* 4 Threads
* Hyper-Threading(efficient use of processor resources)
* 3-4 MB Catche
* 32 nm Silicon (less heat and energy)

Core i5:
* Mid range processor.
* 2-4 Cores
* 4 Threads
* Turbo Mode (turn off core if not used)
* Hyper-Threading(efficient use of processor resources)
* 3-8 MB Catche
* 32-45 nm Silicon (less heat and energy)

intel core i7 300x176 Difference Between Core i3, Core i5, Core i7

Core i7:
* High end processor.
* 4 Cores
* 8 Threads
* Turbo Mode (turn off core if not used)
* Hyper-Threading(efficient use of processor resources)
* 4-8 MB Catche
* 32-45 nm Silicon (less heat and energy)