What Is The Difference Between Core i3, Core i5, Core i7

Guys,Lets Check The Difference Between Core i3, Core i5, Core i7.
 Have A look In INTEL New Core Processors.
Lets start with
Core i7:
 High end processor.
 8 Threads
 4 Cores
 Hyper-Threading
 Turbo Mode
 4-8 MB Catche
 32-45 nm Silicon (less heat and energy).
Here Is Now
Core i5:
 2-4 Cores
 4 Threads
 Mid range processor.
 Hyper-Threading
 Turbo Mode
 3-8 MB Catche
 32-45 nm Silicon.
Finally Comes To
Core i3:
Entry level processor.
 2-4 Cores
 4 Threads
 Hyper-Threading
 3-4 MB Catche
 32 nm Silicon
Friend This Is The Difference Between Core i3, Core i5, Core i7.