Can i put a better 45nm processor in one of these laptops?

All of the processors you list are desktop PC processors - will not fit in a laptop. None of the Notebooks you have linked run dedicated graphics cards - all are sharing the main system memory. Check out the minimum and optimum settings for Realflight:- a href="http://www.realflight.com/system-reqs.html" rel="nofollow"http://www.realflight.com/system-reqs.ht…/a