Hi Graham-san,
I have checked some AMD's OpenGL demos for this performance evaluation.
In my opinion, it seems to be no problem about running opengl programs.
1) AMD OpenGL parallaxMapping demo
If upper left score means FPS, then 2868.
2) AMD OpenGL alpha to coverage demo
If upper left score means FPS, then 2925.
3) AMD OpenGL fbo demo
If upper left score means FPS, then 2077.
4) supplement : AMD's forward+ demo
180fps
regards.