Comment by nicoburns

The MacBook Pro with M4 Max will give you 16 cores (12 of which run at 4.5Ghz) and 128GB of RAM, and will likely pretty closely match the speed of the desktop processor for compiling C++ (at least we've done benchmarking of rustc in /r/rust the top-spec Apple chips somehow match top-spec x86 chips).

It certainly won't be cheap though!