http://www.youtube.com/watch?v=C0azk1F_AEw
How are you running a MW3 ultra at 2880x1800 at ultra on 60fps when this guy cannot even run it on 1366x768 at a steady 60fps (30-55) your video card is a geforce GT650m which is equivalent to a HD7750M mobile gpu or a a HD6570 desktop GPU which is only a 588GFLOP card.
Your GPU is barely able to run Black Ops 2 at native 720p, ultra settings and a consistent 60fps let alone run it 5.5x faster than what you claim. Heck even a GTX 580 which can only barely run modern warfare 3 at 2560x1600 at 60fps on ultra which is a lower resolution than the retina display .
Can you tell us again that you are running MW3 on ultra at native 2880x1800 on a geforce GT650m?
I am not saying that you cannot do this on your $2800 laptop with a $60 GPU but hey Apple products are magical right.
By the way your GPU is Wii U class on a $2800 laptop.
Sources of confirmation on these three please? I bet there isn't any confirmation at all but hey I could be wrong.