cpu upgrade advise

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I think that OC up to 4.5 GHz will handle all of that. Since you can't just change processor to Intel but have to change MB too and they are more expensive than it's worth of change. Some games are not going to run at peek no matter what the system is.
It all depends on games and the rest of the system specially GPU. Best way to find out is to monitor CPU and GPU usage during gaming of most heavy game you play and see if any of those two hit's high usage %. In most games bumping processor to 4.5 GHz (which it can reach easily) can help a lot. You'll probably need an aftermarket CPU cooler for that but it's much cheaper than to change whole platform.
So, GPU ?
RAM ?
Which games ?
Take a look at this thread, http://www.tomshardware.co.uk/answers/id-2862803/cpu-100-gaming.html#xtor=EPR-8809
 
I think that OC up to 4.5 GHz will handle all of that. Since you can't just change processor to Intel but have to change MB too and they are more expensive than it's worth of change. Some games are not going to run at peek no matter what the system is.
 
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