Uh? What do you mean? This is my first time posting on this board, and I only posted here because I saw someone ask a similar question but never got a reply. I don't see what I did wrong.... Is this how you treat new people here?
I really hate these kinds of threads in general. Google (Game) system requirements or (Game) benchmarks if it has already been released, or go to one of several Can I Run It websites. They had to find the forum somehow. I just think it would be quicker in general than having to wait for someone to respond. That's just my reasoning though. Who knows, my wife says I live in a fantasy world so maybe my reasoning should be in question.
Unless things are changed you may be surprised at the performance of D3 on even a top notch PC. I would suggest a SSD for optimal performance. Many people with high end machines have been having stuttering issues (check youtube). A SSD seems to solve this issue for many but not all.