evga 7900GTO 512 or Sapphire x1900xt 256

[aiya24]

i use ATi Tool 0.25 beta 14 to change the voltage and overclock. i tried ATT but didn't really like it, i might give it another try since the first time i didn't really mess with it. if you want to use both you can. just use ATi Tool to set voltages and ATT for clocks.