For some applications, certainly. For example, I’d expect it to be much more efficient in matrix multiplication workloads. For general purpose compute, I don’t think there will be much difference this it other way. For games Apple will probably be more efficient.
Not f you actually want to do matrix multiplication. Neural engine can do some ML stuff, sure, if you use Apples frameworks and your problem statement fits what the NPU can actually do.
But even then I’d expect the Nvidia GPU to have much better performance with at least comparable efficiency.