Can a MacBook Air/Pro M3 (16GB) run Gemma 3 12B?

Just about — Gemma 3 12B runs at Q2_K (4.8 GB) at about 12–18 tok/s on a MacBook Air/Pro M3 (16GB).

How much memory does Gemma 3 12B need?

Gemma 3 12B needs about 6.2 GB at 4K context at its smallest quantization. A MacBook Air/Pro M3 (16GB) has 16.0 GB.

Tight fit: Gemma 3 12B on a MacBook Air/Pro M3 (16GB) at Q2_K

Yes, but it's tight.

Tight / slow

Best fit: Gemma 3 12B at Q2_K · 4.8 GB weights · 12–18 tok/s on a MacBook Air/Pro M3 (16GB).

Arena Text Overall · style-controlled

1,342Q2_K untested

gemma-3-12b-it · published configuration reference · Q2_K not tested

Arena Text Overall (style-controlled), exact published entry gemma-3-12b-it, 2026-10-08: reference rating 1,341.8. Published confidence bounds 1,332.3–1,351.3. 3,829 votes. Published gemma-3-12b-it configuration reference. Reasoning mode is not disclosed by the Arena dataset. Tested precision, runtime and sampling settings are not disclosed in this dataset. Selected Q2_K has not been measured by this Arena entry. No quantization quality adjustment is applied.

Snapshot published 2026-10-08 · snapshot imported 2026-10-11 UTC · validated last-good data · manual refresh

Arena leaderboard dataset · Arena / lmarena-ai, Arena Leaderboard Dataset (CC BY 4.0). Selected Text Overall style-controlled rows; field names adapted, ratings unchanged. · dataset CC BY 4.0 · revision e16f90232986

Total memory at 4K context: 6.2 GB; Weights + KV cache + runtime overhead
Estimated generation: 12–18 tok/s
Estimated first token: ~41s

Every quantization on this machine

On small screens, each quant lists every metric below its name. On wider screens, scroll sideways for total memory, speed and fit. Keyboard: focus the table, then use the arrow keys. Quant names stay visible.

Gemma 3 12B quantizations on MacBook Air/Pro M3 (16GB), estimated at 4K context. Weights and total memory are shown separately.
Quant	Weights	Total memory	Speed	Fit
Q2_K	4.8 GB	6.2 GB	12–18 tok/s	Tight / slow
Q3_K_M	6.0 GB	7.4 GB	10–14 tok/s	Tight / slow
Q4_K_M	7.3 GB	8.7 GB	8–12 tok/s	Tight / slow
Q5_K_M	8.5 GB	9.9 GB	7–11 tok/s	Tight / slow
Q6_K	9.7 GB	11.1 GB	6–9 tok/s	Tight / slow
Q8_0	12.5 GB	13.9 GB	— not resident	Won't fit
FP16	23.5 GB	24.9 GB	— not resident	Won't fit

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