hey, after I updated my XFX radeon HD 6870 1gb dual fan card with new drivers, I've got a really poor framerate in games (team fortress 2 and company of heroes 2 beta to be spesific). I used to run a stable 250 fps in tf2, now it's running around 50 fps with the exact same settings, and in coh2 I get around 5 fps in average, with settings set to "auto detect best".
Now I've tried the 12.6 and 12.8 drivers, as well as 13.4 and 13.6 beta drivers. full uninstall with driver sweeper/driver fusion in between. surely done over 10 installs now. using gpu-z, I can see that the GPU is working at max when the games are running.
What could be causing this performance loss?
edit: oh yea and I'm running vista 64bit with the latest updates and service packs, I don't think any more info about the pc should be needed since everything worked great before the update? so it gotta be something with the drivers