afaik, OR's minimus is Q6600 (found the source: http://www.gamespot.com/articles/here-are-the-minimum-specs-oculus-rift-requires-re/1100-6427932/). It's recommended is i5-4590
For 3d rendering, time is not a factor. (Well I guess I hope it renders within a day, I can live with that). My streams are only for light games like Dota2, League, SimCity, and Rocket League. I only stream at 720p30 because of slow internet service we have.