Plain old wine actually does support Direct3d. D3d calls are translated into equivalent OpenGL calls and then a native OpenGL library is called to render. WineX is a commercial venture which has concentrated on better support for games, therefore their DirectX implementation tends to be slightly better. WineX binaries also contain support for proprietry code that can't be released because of NDA. These are namely CD copy protection licensed from SafeDisc et al and S3TC licensed from S3.
If you're going to flame someone for "not reading up on documentation before they post" then it's always a good idea to have your own facts straight.