The Apple M3 Ultra (192GB) carries 192GB of unified memory, about 144GB of which reaches a model under macOS, with 800 GB/s of memory bandwidth, making it one of the strongest machines you can run a local model on. Here is which models fit, how fast they run, and what quantisation gives the best balance of quality and speed.
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The Apple M3 Ultra (192GB) has 192GB of unified memory, of which about 144GB reaches a model under macOS, and 800 GB/s memory bandwidth, making it one of the strongest machines you can run a local model on. This guide covers which LLMs fit, expected tok/s performance, and recommended settings.
See the full Apple M3 Ultra (192GB) specs page for detailed specifications, all compatible models, and speed estimates. Current price: $6999.