Okay Thanks!
Now i got some problems with modify the configs. I got a AMD X4 965 and a ATI 7770 and use the following config on cgminer:
cgminer.exe -o *** -u *** -p *** --scrypt -I 18 --shaders 640 --thread-concurrency 8000 -w 192 -g 1
Is there something todo better?
No idea on that one. Even with the same type of video card, you can often get different results by changing settings around. Sorry I can't be of more help on that end!