SDK faster than the regular?

i havent gotten blitz3d SDK but im really considering it. my question is does SDK calculate/render faster than the normal version?

or better yet: is SDK worth getting at the moment and why?

oh and one more thing.... could i use it with C# express edition. (and no im not gonna try to make it work with XNA. i just like C# express' set up more than most others)

thanks