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Can MacBook Pro M3 Max 128GB run Nanbeige4.2-3B?

Apple · 128 GB LPDDR5 · 400 GB/s bandwidth · Nanbeige · 4.0B · model ctx up to 128K

✅ Yes — MacBook Pro M3 Max 128GB (128 GB) can run Nanbeige4.2-3B at Q4 (8K)
VRAM: 4.08 GB needed of 128 GB
Speed: ~141.0 tok/s (estimated)
SS · ExcellentComposite score: VRAM headroom × 0.5 + tok/s speed × 0.5. Q4 @ 8K context.
METAL
Excellent for 💬 chatExcellent for ⌨️ codingExcellent for 📋 general
Estimates from memory-bandwidth formula; rows marked "measured" override. Methodology.

Fit & speed by quant and context

QuantContextVRAM neededFits?tok/s (decode)
Q44K3.64 GBYes141.0 ± est.
Q48K default4.08 GBYes141.0 ± est.
Q432K6.7 GBYes141.0 ± est.
FP164K9.44 GBYes38.8 ± est.
FP168K default9.88 GBYes38.8 ± est.
FP1632K12.5 GBYes38.8 ± est.

Fits = weights + KV(ctx) + 0.5 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).

VRAM breakdown at 8K context

QuantWeightsKV cacheOverheadTotal neededMacBook Pro M3 Max 128GB VRAM
Q42.2 GB0.88 GB0.5 GB4.08 GB128 GB
FP168.0 GB0.88 GB0.5 GB9.88 GB128 GB

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