Compare iPad 4 with iPad 3

If we make a fast compare bettween cheap iPad 4 and iPad 3 we find a better CPU at iPad 4 (A6X0 than ipad 3  (A5X) a new OS on iPad 4 (IOS 6 than IOS 5 on iPad3) and the retina display on cheap Ipad4 wich is unbelievable.

WARRANTY on all products 2 YEARS !