im 17, saved up enough money for a i5 2500k and a new mobo, i havent ordered the parts yet but when i told my dad about it he said he'll ask the computer expert guy who owns a store to see if i really need a upgrade or not. my current cpu is a amd phenom 9150e 1.8ghz. well the expert said i dont need to upgrade my cpu its perfectly fine for gaming and other stuff but i feel other wise.. and i said well i still would like to upgrade my cpu and the expert said he won't install a new cpu and mobo in my computer because it would be a waste of money and time and i wouldnt see a difference. well.... would i see a performance boost or not? what should i do now?.. thanks you guys! ps i play games like skyrim, battlefield 3, left 4 dead 2, company of heroes, starcraft 2 , diablo 3, dawn of war 2. and my gpu is a gtx 560 ti 448 cores.