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You can probably push your 3570K a little more, though most games are still GPU limited on 7950 CF.
Stick with your 3570, jumping to 4770K wunna see much performance increase in gaming.
though most games are still GPU limited on 7950 CF.
Maybe not yet, but i think most decent games released during 2014 and beyond will like CPUs with more than 4 threads.
I personally think the OP should just pop in a 3770K. It runs cooler than Haswell and there's hardly any difference in performance between a 3770k and 4770k anyway... Nothing that you'd really notice. You won't need to fork out for a new mobo and don't have to worry about reinstalling your OS and other stuff either.
Eh? Could you tell me please a game that his system going to be GPU limited on 2 7950s? Other than the ones that do not support CF or SLI.
His setup is beating by a huge margin every single GPU solution, in the market.
(including overclocked 780Ti & 290X).
Two 7970s can't manage 60fps average in Sleeping Dogs at that res, for example. Even at 1080p lots will have dips of <30fps when fully maxed out.
Maxed out on a single 7970 I was dipping to 30 FPS, 1080p of a 7970 Crossfire shouldn't really be dipping to 30.
Although it's because he's misunderstood what you meant by GPU limited.