Last month Intel Introduced the Haswell Refresh processors. The newly introduced processors can easily be described as being the same 4th generation Core-processors we already knew, with the same price with a model number which is 20 points higher and a clock frequency which has been raised by 100 MHz. 
Two processors however didn't receive an update: the Core i7 4770K and the i5 4670K, the uncocked models aimed at overclockers.