Removing the igpu from the K SKUs would make K chips a bit more sensible to purchase all of a sudden. I still regret getting the 4770k at times not because its an i7, i still think this was a wise choice for me, but because it overclocks like a potato and while i would not be garantied higher clock speeds if the igpu wasnt there im pretty sure it wouldnt have hurt my results either. The 10-15% OC i can get out of it is pathetic compared to the 54% i could get out of my C1 stepping i7 920 on air. No i dont expect a 3,9ghz CPU to OC 50+% but 20-25% would have been reasonable as a common sighting. Afterall that is why you buy a K part these days.
My i7 clocks from 3.00Ghz to 4.4Ghz.
The joys of no iGPU and a soldered heatspreader.
