So if the CPU only received minor changes and is still dual core, the GPU is still 4 cluster, that makes the question of where all the extra transistors went even more pressing.
And with the performance oriented changes being so small, and the focus on sustained performance on the iPhone in the A8 taking away the differentiating feature that the iPads' had with the A7, I wonder if there will actually be an A8X this year with the GX6650 and bigger memory bus for the iPads? If there is really a larger, higher resolution iPad Pro, the Pro and Air could use the A8X and the Mini use the A8 possibly with a minor clock speed bump.