My brother in law is currently selling his old pc and my friend is interested is buying it for playing bf3, but the 9800gt with 512mb vram wont really cut it for bf3 lol so whats the best gpu to pair with this first gen Phenom x4? I know the x4 is low end and wont be great for bf3 but it meets requirements and friend wont care to play on lower settings. My first option for the price would be the 7770 as i know it'll play high preset, its just how bad will the cpu effect the 7770? or try something lower?