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Can a Mac Studio M3 Ultra (80c GPU) 512GB run Qwen 2.5 Coder 32B?

Yes. Qwen 2.5 Coder 32B fits in fast memory on Mac Studio M3 Ultra (80c GPU) 512GB at Q8_0 (37.2 GB needed, 384.0 GB usable), about 19 tok/s (estimate).

Hardware: Mac Studio M3 Ultra (80c GPU) 512GB · Model: Qwen 2.5 Coder 32B

Mac Studio M3 Ultra (80c GPU) 512GB has 512 GB of unified memory and 819 GB/s of memory bandwidth. The checker leaves macOS a share of unified memory, so Ollama can use 384.0 GB. Qwen 2.5 Coder 32B (32.8B, Alibaba) at Q8_0 is a 35 GB download and needs 37.2 GB with headroom for about 8k tokens.

Best quantQ8_0
Download size35 GB
Memory needed37.2 GB
Usable fast memory384.0 GB
Fitfits in fast memory
Estimated speed~19 tok/s (estimate)
Commandollama run qwen2.5-coder:32b-instruct-q8_0
Open Mac Studio M3 Ultra (80c GPU) 512GB 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