Sorry for the delay on posting, I have been in the process of re-branding my company. You can see my new website at http://www.kaplandesignlabs.com - I will also post my marketing materials soon so that you can see what I have been up to.
Anyways, In my last post,
It is impotent to note that for these tests I was rendering Octane with a single Quadro 4000 which is a very nice graphics card. If you were using multiple high end graphics cards, instead of a single card, render times would probably be a lot lower. In my opinion though, investing your money in an i7 processor makes more sense then buying multiple high performance graphics cards which have little application outside of gaming and GPU based rendering.