A CPU that ends in K, instead of one that doesn't.
Most likely you want a 4690K which is Devil's Canyon. There's unlikely to be any difference between them.
Ah, ok, I see the confusion created .. my bad .. still getting the hang of english =)
I just want to make sure that the cpu i pick up .. does not suffer from whatever that bad thermal paste problem intel cpus have had .. I am not even sure if Intel 3.4 GHz LGA 1150 4670 i5 4th Generation Processor qualifies for this defect or it was way before, but heh, better to ask than to repent .. right?