Intel Haswell i5-4670K vs. i7-4770K Comparison @ techPowerUp
 

We compare the top two Intel Haswell processors Core i5-4670K and Core i7-4770K at stock and overclocked. Ivy Bridge results are included, too, to determine whether an upgrade makes sense. We also did a run with liquid nitrogen, resulting in maximum clocks of over 6 GHz.

http://www.techpowerup.com/reviews/I...0K_Comparison/