My PC is: Intel i7 920 2.66GHZ 6GB Ram DDR3 1333Mhz Ati Radeon HD 5850 1GB DDR5 HD 120GB SSD Corsair Until yesterday when I set all to full, except Track and Environment Reflection, NO AA and Trilinear, FPS were about 25-40. Today I decided to overclock CPU and Graphics Card: CPU 2.66@3.33GHZ GPU 725@750MHz and WOW FPS were about 110-130. I have asked myself, what is the cause? So I reset first the CPU Clock and the FPS were always about 110-130, then I set also the GPU clock to default and FPS were always about 110-130. Now ALL PC clock are set to default and the game runs about 110-130fps with all settings to full. ??????????????????????????????????????? Sorry for my little English !
Looks like a EPU-6 engine or GPU speed throttling issue. When you overclock, both the CPU and GPU don't throttle down to save power.
This is interesting. But unfortunately I can't reproduce it. Overclocking my system (CPU and GPU) did increase the framerate about 10-20 FPS, but after resetting the CPU and GPU back to normal, the FPS also drop.
