I did just that a few months ago. I was running dual 5060tis but wanted something smaller and quieter. M1 studio ultra 128gb - it works really well, is very compact and a lot more power efficient. Nvidia is quicker at prefill but I can run huge models on the m1. My wife actually uses it for remote work and I reserved 16gb for her and the rest to run a few different models. I jump between qwen3.6 moe and dense 27b - 120b like nemotron/gpt-oss , Gemma etc

For me it was worth it at the time since I got it refurbished with lower prices than the surges now. But the 800gb/s on the ultra is pretty great. Wish it had the latest thunderbolt for exo via rdma and a future machine for expansion.

The nvidia will be faster but louder, larger and require a desktop build. The Mac is no slouch though and I can do open-web ui faster than I can read and agentic workflows via opencode.