performance laptop

Hey there! I've just qualified for engineering (IIT Kharagpur :razz:) and need a new lappy for the next four years. My requirements, in order of preference are: 4th Gen Ci7 above 2.2Ghz, turbo boost to minimum 3Ghz (Similar AMD proc would do) 8 gigs of DDR3 RAM Good GPU, anything above GT850M...