Samsung Galaxy S6

[agrabren]

It's always going to be based on where the performance bottleneck is. If the problem is emulating the CPU, then faster CPUs will equate to faster emulation. If the bottleneck is at the graphics rendering (which can either be caused by a slow GPU or by the availability of graphics APIs ), then the GPU will be the deciding factor. Likely, with Dolphin, this varies from game to game and even scene to scene.