For all intents and purposes, Cliffs of Dover is a released Beta, with a very, very small share of the PC market. I doubt they are even showing up on ATI's radar right now. When the new graphics engine is up and running I'm sure Luthier will send them a notice saying, "hey, the engine is no longer a horrible mess, how about you take another look?"

Until then we're just going to have to keep trying other game profiles and see which one gives us the best results.