Well, I've set all GPU clocks to the same speed (850mhz,1200mhz) for a slight performance increase. This was accomplished with the command: aticonfig --adapter=all --od-setclocks=850,1200. You'll have to use aticonfig --odcc as well.
My XFX 5970 2GB Black Edition seems to handle 850mhz/1200mhz with no problems, but I'm not sure if this will be the case with all 5970s. It would be wise to try small increments from the stock 725mhz.
My XFX 5970 2GB Black Edition seems to handle 850mhz/1200mhz with no problems, but I'm not sure if this will be the case with all 5970s. It would be wise to try small increments from the stock 725mhz.