I don't think he is assuming linear scaling with any of those factors. He is saying that despite using a small fraction of the power, and running at a signific

I don't think he is assuming linear scaling with any of those factors. He is saying that despite using a small fraction of the power, and running at a significantly lower frequency, the Apple chips have only a small deficit on Spec2006 (and, not noted, but for several benchmarks, no deficit at all - a lot depends on whether SIM plays a big role). Under that scenario, it is reasonable to assume that if you say tripled the power budget and adjusted the frequency to match the larger power budget and "full size" cooling solution, there would be a jump in performance. They are not claiming it would be 3 (power) x 1.5 = 4.5x times faster performance, i.e., A-series chips would be many times faster than Intel chips. I think it is entirely reasonable to assume it would be the in the range of 20% or more, however. Certainly Intel chips scale up and down based on exactly those factors. In my opinion, in the case where apples-to-oranges comparisons are possible (low TDPs), Apple's newest chips are already faster than Intel chips. In a high TDP scenario, the same would be true with basic re-targeting of voltages, frequencies, etc (no uarch changes). We don't have the latter yet, and by the time we do we will probably see Ice Lake and Sunny Cove from Intel, so the pendulum may swing back the other way.