It will work just fine and it should do 4Ghz+ all depends on the cooling.
have you bought the board yet?
I got my 4690k up to 4.5GHz and it was stable. I ran it at 4.4Ghz 24/7 without a problem.
if you have a good cooler you should be able to get close to that.
the 4670k does run hotter than the 4690k but if you were to delid it you could get really good results.
My 4770k is delidded and runs at 4.5Ghz 24/7 and I would say runs cooler than my 4690k did at 4.4Ghz
hi mate,
sorry, what do yo mean by delidded?