How can i switch my Pes 13 and Fifa 13 to use My AMD Radeon

i installed all drivers and still i can play Pes 13 and Fifa 13 with a good performance , i have Dell N4050
see the photo from the link
http://postimg.org/image/6d1awxfx3/

P.s : i have already turn them from catalyst Control to high performance and no result happened