Some explanation of what some of the finer settings (SMAA/FXAA etc) will do for you in the game visuals. Some video card comparisons and more. Very informative.

http://www.hardocp.com/article/2013/03/12/crysis_3_video_card_performance_iq_review#.UUC_RRyccpl

Thanks: Good read.

these curves easy explain why best way is fps limitation in any systems