>To get Intel CPUs to the same level of power efficiency that M-series CPUs have would require a full rework of the entire CPU infrastructure and external stack, that would require money that even Intel at its best frankly did not have

Intel, at one of its lowest low, still come up with lunar lake, which is not as efficiency as Apple M, but still, quite impressive.

I bet if they were focus on mobile when they are at their peak, they could come up with something similar to Apple M