Apple · 128 GB LPDDR5X · 546 GB/s bandwidth ·
Alibaba · 30.5B (active 3B) · MoE · model ctx up to 128K
Yes — the MacBook Pro M4 Max 128GB (128 GB LPDDR5X) 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 128 GB. Decode at Q4/8K: ≈ 115.8 tok/s (estimated, batch 1). FP16 (≈ 62.6 GB) also fits, at ≈ 31.8 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
115.8est.
Q4
8K default
18.38 GB
Yes
115.8est.
Q4
32K
20.18 GB
Yes
115.8est.
FP16
4K
62.3 GB
Yes
31.8est.
FP16
8K default
62.6 GB
Yes
31.8est.
FP16
32K
64.4 GB
Yes
31.8est.
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).