[seanmcdirmid]

You'll need a couple of 32GB 5090s to run a quantized 70B model, maybe 4 to run a 70b model without quantization, forget about anything larger than that. A huge model might run slow on a M3 Ultra, but at least you can run it all.

I have a Max M3 (the non-binned one), and I feel like 64GB or 96GB is within the realm of enabling LLMs that run reasonable fast on it (it is also a laptop, so I can do things on planes or trips). I thought about the Ultra, if you have 128GB for a top line M3 Ultra, the models that you could fit into memory would run fairly fast. For 512GB, you could run the bigger models, but not very quickly, so maybe not much point (at least for my use cases).