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Can a M4 Max (40c GPU) 128GB run Qwen 2.5 72B?

Yes. Qwen 2.5 72B fits in fast memory on M4 Max (40c GPU) 128GB at Q8_0 (81.1 GB needed, 96.0 GB usable), about 6 tok/s (estimate).

Hardware: M4 Max (40c GPU) 128GB · Model: Qwen 2.5 72B

M4 Max (40c GPU) 128GB has 128 GB of unified memory and 546 GB/s of memory bandwidth. Mac Studio M4 Max (40c GPU) 128GB has the same memory and bandwidth, so the fit numbers match; this page is M4 Max (40c GPU) 128GB. The checker leaves macOS a share of unified memory, so Ollama can use 96.0 GB. Qwen 2.5 72B (72.7B, Alibaba) at Q8_0 is a 77 GB download and needs 81.1 GB with headroom for about 8k tokens.

Best quantQ8_0
Download size77 GB
Memory needed81.1 GB
Usable fast memory96.0 GB
Fitfits in fast memory
Estimated speed~6 tok/s (estimate)
Commandollama run qwen2.5:72b-instruct-q8_0
Open M4 Max (40c GPU) 128GB in the checker

Estimates, not benchmarks. Model sizes are ollama.com download sizes; memory needed adds headroom for ~8k tokens of context; speeds are rough figures from memory bandwidth. Data updated 2026-10-23.

A project by OnDevice Labs · llms.txt