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Can MacBook Neo A18 Pro 8GB run Qwen3-8B?

Apple · 8 GB LPDDR5X · 60 GB/s bandwidth · Alibaba · 8.2B · model ctx up to 128K

❌ No — Qwen3-8B Q4 needs 6.15 GB, card only has 8 GB
VRAM: 6.15 GB needed of 8 GB
Speed: ~10.5 tok/s (estimated)
FF · No FitComposite score: VRAM headroom × 0.5 + tok/s speed × 0.5. Q4 @ 8K context.
METAL
Your GPU won't fit Qwen3-8B, but runs these similar models: Qwen2.5-7B-Instruct, gemma-4-E2B-itor☁️ Rent on RunPod from ~$0.50/hr
Estimates from memory-bandwidth formula; rows marked "measured" override. Methodology.

Fit & speed by quant and context

QuantContextVRAM neededFits?tok/s (decode)
Q44K6.15 GBNo12.7 ± est.
Q48K default6.72 GBNo10.5 ± est.
Q432K10.09 GBNo4.4 ± est.
FP164K17.96 GBNo0.4 ± est.
FP168K default18.52 GBNo0.4 ± est.
FP1632K21.9 GBNo0.2 ± 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 Neo A18 Pro 8GB VRAM
Q44.59 GB1.12 GB0.5 GB6.72 GB8 GB
FP1616.4 GB1.12 GB0.5 GB18.52 GB8 GB

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