Soundwave on 12 April 2016
It was always going to be tricky to get a high end mobile processor that could match console graphics into a passively cooled portable.
The Apple A9X is probably the best one right now under such a scenario (approximately 500 GFLOPS performance) ... and that has the giant sized of the iPad Pro, even the new iPad which has an A9X has to have a lower clocked version of it presumably because of heat/battery issues and that's still a large device.
