Apple · 192 GB LPDDR5 · 800 GB/s bandwidth ·
Alibaba · 30.5B (active 3B) · MoE · model ctx up to 128K
Yes — the Mac Studio M2 Ultra 192GB (192 GB LPDDR5) can run Qwen3-30B-A3B. At Q4 with the default 8K context it needs ≈ 18.38 GB VRAM (weights 16.78 GB + KV cache 0.6 GB + 1 GB runtime overhead), which fits within 192 GB. Decode at Q4/8K: ≈ 169.7 tok/s (estimated, batch 1). FP16 (≈ 62.6 GB) also fits, at ≈ 46.7 tok/s (estimated). Estimates come from memory-bandwidth math; rows tagged measured override estimates. Relative ranking is more reliable than absolute tok/s. Methodology.
Fit & speed by quant and context
Quant
Context
VRAM needed
Fits?
tok/s (decode)
Q4
4K
18.08 GB
Yes
169.7est.
Q4
8K default
18.38 GB
Yes
169.7est.
Q4
32K
20.18 GB
Yes
169.7est.
FP16
4K
62.3 GB
Yes
46.7est.
FP16
8K default
62.6 GB
Yes
46.7est.
FP16
32K
64.4 GB
Yes
46.7est.
Fits = weights + KV(ctx) + 1 GB overhead ≤ 95% of VRAM. Measured
anchors are context-agnostic; the fit verdict is recomputed per context. A missing tok/s
means the model is far beyond this card (offload-only territory).