On what, microbenchmarks? I have realtime audio workloads where the hot loop is essentially linear algebra. Exactly the kind of work that suits AVX2/AVX512. Guess what, Apple Silicon still pulls ahead because real workloads are branchy, cache-hungry, full of dependencies and do not line up in 8 neat f64 operations per cycle.
> Is there some really amazing Mac only software that would justify the effort ?
As others said, the killer app is XCode. Even if you can technically get it to run, you'll still need the full support and test flows of a native solution, so you might as well follow the proper path and use a Mac.
I can get Visual Studio to run in Parallels today. I still test with a real Windows machine.
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