i just installed a modified catalyst driver by a user from guru3d.
if you want to install these drivers, read the instructions. this is for advanced users only!
instructions:
download link for the driver:
you need 7-zip to extract the files:
http://sourceforge.net/projects/sevenzip/files/7-Zip/9.20/7z920-x64.msi/download
edit: tested it some more. it actually works. i used container city as a test. before the fix everytime i look over a larger area, my frames dropped down. now i have over 60fps all the time. (except theres a lot of action)
how i installed:
- driver sweeper to uninstall current drivers
- restart
- run genetix_cleanup (modded driver directory) as administrator
- install all programs when prompted during isntallation
- do not restart when prompted (keep reading the batch file output)
- run genetix_install
- after everything is installed (.net, directx, driver) you can restart your system
its not too hard, but read carefully before clicking on something you dont understand.
the catalyst 11.5 rc3 fixed the performance issue for me and a lot of other people too apparently.