How fast will Qwen 3.5/3.6 35B A3B feel on the Mac Studio M5 Ultra 512GB?

Qwen 3.5/3.6 35B A3B on the Mac Studio M5 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 M5 Ultra 512GB has 384 GB usable, so it fits entirely in memory. Expect about 307 tokens/sec (261–353), with the first token after 0.3 s for a short prompt. This estimate is projected from the hardware specs; no benchmarks exist yet.

Speed by quantization

QuantizationFile sizeMemoryGenerationFirst tokenSource
Q4_K_M22.1 GBFits307 tok/s0.3 sProjected
Q8_036.9 GBFits184 tok/s0.3 sProjected
FP1669.4 GBFits98 tok/s0.3 sProjected

Qwen 3.5/3.6 35B A3B on other hardware

Other models on the Mac Studio M5 Ultra 512GB

All models on the Mac Studio M5 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.