The Apple M4 Ultra (384GB) carries 384GB of unified memory, about 288GB of which reaches a model under macOS, with 1092 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.
Already have it? Find the best model for it. Still choosing? See what else $9,999 buys. Or the full specifications.
The Apple M4 Ultra (384GB) has 384GB of unified memory, of which about 288GB reaches a model under macOS, and 1092 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 M4 Ultra (384GB) specs page for detailed specifications, all compatible models, and speed estimates. Current price: $9999.