How fast will Qwen 3.5/3.6 35B A3B feel on the Mac Studio M3 Ultra 512GB?

Qwen 3.5/3.6 35B A3B on the Mac Studio M3 Ultra 512GB

Qwen 3.5/3.6 35B A3B is a 35.95B-parameter mixture-of-experts model (3B active per token). At Q4_K_M it needs about 22.9 GB of memory. The Mac Studio M3 Ultra 512GB has 384 GB usable, so it fits entirely in memory. Expect about 230 tokens/sec (134–327), with the first token after 0.3 s for a short prompt. This estimate is interpolated from benchmarks of similar setups.

Speed by quantization

QuantizationFile sizeMemoryGenerationFirst tokenSource
Q4_K_M22.1 GBFits230 tok/s0.3 sDerived
Q8_036.9 GBFits138 tok/s0.3 sDerived
FP1669.4 GBFits73 tok/s0.3 sDerived

Qwen 3.5/3.6 35B A3B on other hardware

Other models on the Mac Studio M3 Ultra 512GB

All models on the Mac Studio M3 Ultra 512GB · Qwen 3.5/3.6 35B A3B on all hardware

Estimates for a short prompt on a single device. Measured numbers come from community benchmarks (r/LocalLLaMA, localscore.ai and more); others are derived from similar setups or projected from specs. Open source on GitHub.