Can MacBook Pro M3 Max 128GB run gemma-3-12b-it?

Apple · 128 GB LPDDR5 · 400 GB/s bandwidth · Google · 12.2B · model ctx up to 128K

Yes — the MacBook Pro M3 Max 128GB (128 GB LPDDR5) can run gemma-3-12b-it. At Q4 with the default 8K context it needs ≈ 10.11 GB VRAM (weights 6.71 GB + KV cache 2.4 GB + 1 GB runtime overhead), which fits within 128 GB. Decode at Q4/8K: ≈ 21.2 tok/s (estimated, batch 1). FP16 (≈ 27.8 GB) also fits, at ≈ 5.8 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	8.91 GB	Yes	21.2 est.
Q4	8K default	10.11 GB	Yes	21.2 est.
Q4	32K	17.31 GB	Yes	21.2 est.
FP16	4K	26.6 GB	Yes	5.8 est.
FP16	8K default	27.8 GB	Yes	5.8 est.
FP16	32K	35.0 GB	Yes	5.8 est.

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).

VRAM breakdown at 8K context

Quant	Weights	KV cache	Overhead	Total needed	MacBook Pro M3 Max 128GB VRAM
Q4	6.71 GB	2.4 GB	1 GB	10.11 GB	128 GB
FP16	24.4 GB	2.4 GB	1 GB	27.8 GB	128 GB

Other GPUs that run gemma-3-12b-it

• B200 192GB SXM — ≈424.2 tok/s Q4 est.
• MI300X 192GB — ≈281.1 tok/s Q4 est.
• H200 141GB SXM5 — ≈254.5 tok/s Q4 est.
• H100 80GB SXM5 — ≈177.7 tok/s Q4 est.
• Gaudi 3 128GB — ≈173.7 tok/s Q4 est.
• A100 80GB SXM4 — ≈108.1 tok/s Q4 est.
• RTX 5090 32GB — ≈95.0 tok/s Q4 est.
• RTX 4090 24GB — ≈53.5 tok/s Q4 est.

All GPUs for gemma-3-12b-it →

Other models for the MacBook Pro M3 Max 128GB

• Qwen3-0.6B — ≈318.2 tok/s Q4 est.
• gemma-3-1b-it — ≈254.5 tok/s Q4 est.
• Llama-3.2-1B-Instruct — ≈212.1 tok/s Q4 est.
• Qwen3-1.7B — ≈127.3 tok/s Q4 est.
• Qwen3-30B-A3B — ≈84.8 tok/s Q4 est.
• Qwen3-Coder-30B-A3B-Instruct — ≈84.8 tok/s Q4 est.
• GLM-4.7-Flash — ≈84.8 tok/s Q4 est.
• Qwen3-30B-A3B-Instruct-2507 — ≈84.8 tok/s Q4 est.

All models on the MacBook Pro M3 Max 128GB →