hello i just installed a gtx 670 and have a amd phenom ll X2 550 as a cpu and i have a http://www.amazon.com/AMD-Phenom-3-4Ghz-512KB-4000MHZ/dp/B002SRQ214 cpu on the way. im wondering is my cpu bottlenecking my gpu that bad thats its limiting my game to 50 fps? im playing mx simulator when i play on high graphics its at 50 and when i play on lowest possible graphics its still at 50 fps. before i would be a 125 fps average on high graphics. and will the cpu i have on the way bottleneck my gtx 670?