is this possible changing dual core processor into core 2 duo? because i want to play Call of duty "Modern warfare 3"and as per my knowledge & my friends' point of views .. i can only play call of duty modern warfare 3 in core2duo processor & in above than core2duo ..please tell me does call of duty modern warfare 3 work in dual core processor..my system is having Hd=320,ram=2gb and Graphic card= Nivedia 1 gb with Hdmi support.