Running a n iMac 12,2 i5 with an HD6770M GPU. I have it Bootcamp'd for Windows and it's starting to get sluggish. Have 16mb RAM installed and looking put in a quicker HD soon as well. Ran some Bentley Microstation benchmarks today, as I'm thinking of moving from AutoCad 2013, as it's becoming a dog. Microstation makes much better use of multicore. I was checking over the results and noticed that ATI drivers are still circa 2011. Anybody got any idea what the latest driver version is for 6770M and a link if there's better out there?