From this article
http://lifehacker.com/how-to-optimize-your-mac-for-gaming-1451773588
looks like you can control gpu switching with http://codykrieger.com/gfxCardStatus
http://lifehacker.com/how-to-optimize-your-mac-for-gaming-1451773588
looks like you can control gpu switching with http://codykrieger.com/gfxCardStatus
