[amagumori]

well one problem is that you have always had to buy the most expensive macbook / mac to get any sort of dedicated GPU. they've never had a GPU in anything but the absolute most expensive mac. besides that, apple has always had poor opengl software and driver support. they just released opengl 4 support with mavericks and touted it as a big deal, but it's opengl 4.1, which was released in 2010.