http://bugs.winehq.org/show_bug.cgi?id=24928
--- Comment #17 from Danellos trevor.w.philip@gmail.com 2010-11-07 03:49:44 CST --- It depends purely on the shader model capabilities of your graphics card and drivers. There is more than enough evidence to suggest that the highest shader model (and vertex) capability of direct3d9 is shader model 3, and the highest for direct3d11 is shader model 5.
I have also had it confirmed by 2 people on the beta servers and one friend in my guild. One used an ATI card and the other 2 used Nvidia.
Sometimes hardware vendors my provide extensions to the dx9 api. But the dx9 api is still limited to its shader model.
here is also more evidence for you: http://www.gamedev.net/community/forums/topic.asp?topic_id=583157
As the Blue Poster said on the link provided above, the settings may be "maxed out" but they will NOT look "maxed out" depending on which shader model is in use.