Most of the stories i hear with radeons are they dont work well with maya.. I've heard of a few that work ok but for the most part they had some issuses maya..
Check the support forum at alias and you see a lot of the post are having trouble with 9800.
I am enough of an artist to draw freely upon my imagination, knowledge is limited, imagination encircles the world. (Albert Einstein)
https://www.artstation.com/kurtb