real

I am always using sony vegas for my editing and rendering, but I cant seem to render in real time no matter what setting I try. I change the format, but nothing seems to help. I have an AMD FX-8350 @ 4.4 Ghz, 16gb Gskill Ram 1600mhz, 120gb ssd for boot, 1tb wb black, 1tb wd blue, GTX 660ti. I...