This comparison maybe Apples to Apples, but it's not really apples to apples. Modern Intel and even older Intel can bring a lot more to the table than the Mac Pro from a few years back could deliver because of Apple's design decisions. You could make the argument that you're just benchmarking Apple Macbooks to choose a platform to run macOS on, but then the datacenter CPU doesn't really add anything.
If you're going to throw a datacenter GPU into the comparison, at least grab a modern Intel chip for your benchmarks. The 9980HK is from two years ago, back when Intel was already losing ground to AMD. The 10th, 11th and 12th gen processors made significant performance improvements since then (12900HK performing twice as well in some benchmarks compared to the 9980HK), at the cost of thermals and power usage.
The M1 will probably still beat a modern Intel chip, but by a significantly smaller margin in terms of performance (battery usage, though, is a whole different story).