This getting really complicated when i get different suggestions from you , i also have watched gaming reviews on youtube, and 860k wasnt worse than i3
Sorry if my suggestions seemed contradictory.
My point is one should avoid spending extra on accessories to squeeze a little more performance out of a cheap CPU, as that money is usually better spent on upgrading the CPU itself.
The 680k is a fine chip for the price. But even overclocked its not faster than a more expensive Intel haswell i3.