I have the same question as I supported thru kickstarter well before the specs were released. Wonder how it would run on a new iris pro iMac as well cause I was thinking about getting a new Mac. I know that Wasteland 2 and the Shadowrun games worked passibly on my old 2007 iMac with ALL the graphical bells and whistles turned down. I think as long as the graphics card is at least 512mb that the system memory may be more important. I hope someone from Obsidian can confirm before I spend the time installing.