For today’s ai-accelerated workloads, will you use a 14th gen intel + 4090 or Apple M3? The software tooling is not available for Apple, there is no CUDA support basically. This is not an emotional judgment, if an Apple supported cuda on Apple Silicon I’d use it, but it doesn’t.
I use both. Apple’s higher end hardware works well for local LLM inference thanks to its unusually high memory bandwidth and frugal energy consumption. But for serious work you need CUDA, no ifs or buts.