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Yes. Flint 40B-A2.5B (MoE) fits in fast memory on Mac Studio M3 Ultra (80c GPU) 512GB at Q4_1 (27.6 GB needed, 384.0 GB usable), about 201 tok/s (estimate).
Hardware: Mac Studio M3 Ultra (80c GPU) 512GB · Model: Flint 40B-A2.5B (MoE)
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. Flint 40B-A2.5B (MoE) (39.8B, 2.5B active, Recursive) at Q4_1 is a 26 GB download and needs 27.6 GB with headroom for about 8k tokens.
| Best quant | Q4_1 |
|---|---|
| Download size | 26 GB |
| Memory needed | 27.6 GB |
| Usable fast memory | 384.0 GB |
| Fit | fits in fast memory |
| Estimated speed | ~201 tok/s (estimate) |
| Command | ollama run flint:40b-a2b-q4_1 |
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