i currently have a 500w psu and i am looking to get 2 rx 480s running in crossfire. my cpu is a fx 8350. what would you guys recommend and would my cpu bottleneck my gpus at all?
According to gamers nexus it eats up to 430w (http://www.gamersnexus.net/guides/2507-crossfire-rx-480-benchmark-vs-1070-and-1080-power-temperatures-fps/page-2) So, i think if you have that FX 8350 with a good 600W or 650W just to be sure you will be plenty fine.
About the CPU, i think it will bottleneck it, but for start, why you need a CF? which resolution?