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Yes. Qwen3 8B fits in fast memory on M4 Max (40c GPU) 48GB at Q8_0 (9.9 GB needed, 36.0 GB usable), about 49 tok/s (estimate).
Hardware: M4 Max (40c GPU) 48GB · Model: Qwen3 8B
M4 Max (40c GPU) 48GB has 48 GB of unified memory and 546 GB/s of memory bandwidth. Mac Studio M4 Max (40c GPU) 48GB has the same memory and bandwidth, so the fit numbers match; this page is M4 Max (40c GPU) 48GB. The checker leaves macOS a share of unified memory, so Ollama can use 36.0 GB. Qwen3 8B (8.19B, Alibaba) at Q8_0 is a 8.9 GB download and needs 9.9 GB with headroom for about 8k tokens.
| Best quant | Q8_0 |
|---|---|
| Download size | 8.9 GB |
| Memory needed | 9.9 GB |
| Usable fast memory | 36.0 GB |
| Fit | fits in fast memory |
| Estimated speed | ~49 tok/s (estimate) |
| Command | ollama run qwen3:8b-q8_0 |
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