Nebuchadnezzar
Legend
Yes it depends, and that's exactly why I questioned your initial comment about cluster migeation being terrible for battery life I'd like to see real life comparisons between that various use models of multi cluster.
My point is, no it's not better. No matter how much load there are on the A15's, if the A7's can handle it, it's better to do it there. Nevermind the caches being powered on.