Well, from that requirement you can see how much nonsense minimum requirements sometimes are.
Going from an I5 4690k to an I7 5960x yields absolutely ZERO benefit in gaming. The performance difference between a 2500k and a 4690k isn't huge, espevially when both are oc'ed.
You're good to keep it for now. Probably look into an upgrade when you see you're cpu bound a lot (gpu at 50% or less with cpu at >80% usage. Other than that, I'd probably upgrade to cannonlake, if I was you. Even first gen I5/7's still hold their weight, now with the upcoming 5th gen. Broadwell is fifth, skylake 6th, cannonlake 7th.
Thing is, without competition theres a high chance we won't see much of a performance upgrade changing just within 2-3 gens. As it...