Hello there, new here been asking questions and i'm wanting to do a small upgrade to my system. First, i'm looking at these... 3850 Link (Price is good) 4670 Link (Seen the review and uhh.. is that 3850 better?) i'm just a mid gamer so i don't play demanding games like Crysis or COD5. i do play Counterstrike:Source and Left4Dead though. not sure on the Framerates but i have Left4Dead and Cs:S maxed out on max Res. without AA on and get nice smooth gameplay but for CS:S my Framerate goes anywhere from 18 to 60 but stays around 40 at best. i think the 3850 would be my best bet.