This seems like a a weird thing to speculate about. Of course iOS isn’t exactly macOS, but it’s essentially the same OS with a few different feature flags and a

This seems like a a weird thing to speculate about. Of course iOS isn’t exactly macOS, but it’s essentially the same OS with a few different feature flags and a different set of preferred UI frameworks, which are increasingly not so different. That almost exactly same OS is now running on exactly the same processor in an iPad. You can more or less compare that device to anything with similar thermals in an x64 machine.