Well - 3321 is usable but surelly at least 5k+ would be better. What mode have you selected (desktop / laptop ... high / standard)? You can try to change setting there. What also helps to increase the score / smoothness of the play is to kill / dissable and close any unessential apps and services on your PC before playing - that can gain upt 25 - 30%. Stuff like most of rubbish MS options (indexing, sharing, media etc.) can by dissabled together with various toolbars or gadgets, even get rid of all graphic enhancements of windows UI etc. Can't personally recommend really on the GC (using laptop with built in crappy GC) - on the box it says recomended Nvidia GTX 660 or higer or AMD HD 7950 or higher.