techead
Honorary Master
Hmm, good question can't remember.. Will need to confirm. It definitely wasn't FXAA cos that one makes everything look fuzzy IMHO, so one of the other options.
Well that answers that question then, I am using FXAA (the least taxing of all the AA types)
Having said that, the only other setting I didnt have on MAX was the Hairworks, used ON instead of VERY HIGH
Very High produces about a 5 FPS drop. Im sure if you disable Hairworks, you should get away with SMAA
edit: Going to try that later