Ty for the info, i am a noob for these xfire things lol , what do you mean a copy of fear .exe?
You go to Windows Explorer, to the directory where you installed The Witcher 2, into bin/ and make a copy of witcher2.exe . Then rename the copy to fear.exe and start fear.exe .
In my case, Catalyst picks this up as being a different game, applies different internal graphics optimizations and boosts my framerate. I had this happen with other games too already.
It's usually only necessary with newer games, after a while the games get patched and/or the graphics driver update includes the games profile. Someone posted a link to twitter where they claim they will create such profile, so it's only a matter of time in case you feel unsure doing the steps I outlined.