there are a few games that are cpu heavy and even a K series i5 with a heavy overclock will hinder performance, but that has more to do with the game engine than the cpu itself. Crysis 2 is a classic cpu destroyer. Dragon Age inquisition is another one, but to be fair it's pushing the frostbite 3 engine to its limits in some areas, and I swear I heard my i5 weeping tears of agony a few times. If money was no object, I would upgrade to an i7 or even an i7-E to play that game again so I wasn't cpu bound.
short answer, not really.