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No. Qwen 2.5 72B does not fit on M3 Max (40c GPU) 48GB: Q4_K_M needs 51.1 GB and 36.0 GB is usable.
Hardware: M3 Max (40c GPU) 48GB · Model: Qwen 2.5 72B
M3 Max (40c GPU) 48GB has 48 GB of unified memory and 400 GB/s of memory bandwidth. The checker leaves macOS a share of unified memory, so Ollama can use 36.0 GB. Qwen 2.5 72B (72.7B, Alibaba) at Q4_K_M is a 47 GB download and needs 51.1 GB with headroom for about 8k tokens.
| Best quant | Q4_K_M |
|---|---|
| Download size | 47 GB |
| Memory needed | 51.1 GB |
| Usable fast memory | 36.0 GB |
| Fit | does not fit |
| Estimated speed | no estimate, it does not fit |
| Command | ollama run qwen2.5:72b |
Smallest hardware that runs it: M1 Max (32c GPU) 64GB at Q4_K_M (fits if the Mac GPU limit is raised, 51.1 GB needed, 48.0 GB usable, about 7 tok/s (estimate)). Can a M1 Max (32c GPU) 64GB run Qwen 2.5 72B?
A smaller Alibaba model that fits this hardware: Qwen3.5 35B-A3B (MoE) at Q4_K_M (fits in fast memory, 23.9 GB). Can a M3 Max (40c GPU) 48GB run Qwen3.5 35B-A3B (MoE)?
Open M3 Max (40c GPU) 48GB in the checkerEstimates, 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