I found that with C16xQAA & 16AF I would get a 30fps drop at 1600 by 900 and get a C rank maxxed out when I lowered the rez down to 1280 by 800 would get an A rank with the same settings at 1600 by 900 with no AA would get an A rank so high settings less speed or lower rez with high settings. I think the game will be even more optimized when released due to a Nvidia driver update as I had a similar experience with DMC4 same sinario. It will be worth the wait and it's looking like a lot of peeps will be buying this game see you in the battle ranks.