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Can a Mac Studio M5 Max (40c GPU) 128GB run Ornith-1.5 35B-A3B (MoE)?

Yes. Ornith-1.5 35B-A3B (MoE) fits in fast memory on Mac Studio M5 Max (40c GPU) 128GB at Default (24.8 GB needed, 96.0 GB usable), about 125 tok/s (estimate).

Hardware: Mac Studio M5 Max (40c GPU) 128GB · Model: Ornith-1.5 35B-A3B (MoE)

Mac Studio M5 Max (40c GPU) 128GB has 128 GB of unified memory and 614 GB/s of memory bandwidth. The checker leaves macOS a share of unified memory, so Ollama can use 96.0 GB. Ornith-1.5 35B-A3B (MoE) (35B, 3B active, Ornith) at Default is a 23 GB download and needs 24.8 GB with headroom for about 8k tokens.

Best quantDefault
Download size23 GB
Memory needed24.8 GB
Usable fast memory96.0 GB
Fitfits in fast memory
Estimated speed~125 tok/s (estimate)
Commandollama run ornith-1.5:35b
Open Mac Studio M5 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.

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