ARM graphics are great, just because its not the same as a gpu the side of a brick doesn't mean they should be called Horribly inferior. You obviously have a bias about ARM and are being ignorant to the facts that they have just started to really be developed and are growing at an immense speed. I understand Architecture and how it works but with good programing and the hardware working with it correctly it should not take 5 years. Honestly look at tech 5 years ago i mean you have to know it doubles every 2 years. There is no way that with the current gpu's on things like tegra 3 that they wont be able to handle it.Just because it has any cores/ghz as an x64 CPU does not mean it's as powerful, architecture is more important.
You could have four 3ghz cortex-a15 cores outperformed by a single 2ghz core from an Ivy Bridge i7.
Not to mention how horribly inferior ARM mobile graphics are to modern GPUs, GPUs are what do the anti aliasing