Worth remembering that they're still not really tryingFar from flat out with GPU > CPU anyway.
Toms reckons IP6200's power draw to be 10-12w. They could easily enough double that (or more) and have a viable product.
Skylake isn't due to go that far, but the big increase in Skylake is due to come from a model which has rather more iGPU on it than these Broadwell things do, so >20% should be relatively easy.
Its much higher than 10-12W. Probably double that.