Not really. AMD could make a 7nm version of the Apple core, but they instead build more cores. Much how AMD outmaneuvered intel with smaller chiplets (more flexible in design, higher volume, more tolerant of process errors, higher yield, etc). Apple has done similar with their design. It's better in obvious ways, larger caches, larger number of rename registers, more outstanding transactions, more memory channels, etc. Apple could make a core just as fast, maybe slightly less power efficient if it spent less on the neural cache, image processing, or GPU.
Another big win is that apple runs the memory at 4500 MHz, standard, without overclocking. Even the Zen 3 often runs the ram at 3200 MHz, and standard support goes up to 3800 MHz or so. You can run it higher, but then you have to decouple the memory clock from the CPU clock, which reduces performance. The DDR4x also supports 2 channels, instead of 1. So you get as many memory channels as the AMD threadripper, which is an expensive, hot, and low volume chip.
Another big win is that apple runs the memory at 4500 MHz, standard, without overclocking. Even the Zen 3 often runs the ram at 3200 MHz, and standard support goes up to 3800 MHz or so. You can run it higher, but then you have to decouple the memory clock from the CPU clock, which reduces performance. The DDR4x also supports 2 channels, instead of 1. So you get as many memory channels as the AMD threadripper, which is an expensive, hot, and low volume chip.