I have a Apple Macbook with Intel i7 and AMD Radeon HD 6750M graphics card. I'm not sure if you need the rest of the specs as well, but I'm not to familiar with how to find out about that. I was also running Chrome in the background, including a video chat with a buddy of mine on Google+. Besides that, I had skype and Windows Live messenger on.
I waited approximately 5 minutes for it to end, before I rebooted my computer