Thanx Refracty,
just another question: the reason you told me that is a driver problem? Maybe a 680 will be more fast in 3 or 6 months with new driver?
Anyway thanks for your kindness, i want ask you another thing, thats the PC i'm going to buy, can you suggest me if will be ok?
Intel 17 - 3930k 3 ...

Hi i'm new here and also new with Octane, i have to buy a PC, can you tell me if i can buy a gxt 680 or may is better 2x gtx 580? Thanx in advance,
Alessandro

Hello I'm new here, I work in 3d and post production, I work with cinema 4d and vray and would like to switch to Octane, I have always worked with Mac and now I want some advice from you on what better PC architecture i can buy with a budjet of $ 2,000. ???
Thank you for your time,
Alessandro