Can I Run Gemma 3 12B Instruct on Apple M2 Pro?
Autor: Jakub Rusinowski · Ostatnia aktualizacja: 29 września 2026
Yes. Gemma 3 12B Instruct needs 9.1 GB at 8K context (7.2 GB weights + 1.9 GB KV cache/overhead) at Q4_K_M and the Apple M2 Pro has 24 GB usable, leaving about 14.9 GB of headroom, at roughly 13 tok/s (estimated) with room for up to 128K of context.
See what else this hardware can run →
The numbers
| Model | Gemma 3 12B Instruct |
| Parameters | 12B |
| Quantization | Q4_K_M |
| VRAM needed (8K context) | 9.1 GB |
| Apple M2 Pro usable memory | 24 GB |
| Verdict | Runs |
| Max context | 128K |
| Estimated speed | ~13 tok/s |
Gemma 3 12B Instruct on the Apple M2 Pro: VRAM by quantization
| Quant | VRAM needed | Fits 32 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 25.8 GB | ✗ No | — | — |
| Q8_0 | 14.6 GB | ✓ Yes | 128K | Build for this |
| Q6_K | 11.7 GB | ✓ Yes | 128K | — |
| Q5_K_M | 10.3 GB | ✓ Yes | 128K | Build for this |
| Q4_K_M | 9.1 GB | ✓ Yes | 128K | Build for this |
| Q3_K_M | 7 GB | ✓ Yes | 128K | — |
| Q2_K | 5.8 GB | ✓ Yes | 128K | — |
Assumes an 8K-token context with an f16 KV cache. A longer window needs more; a quantized KV cache needs less. “Max context” is the largest window that still fits in 32 GB of unified memory. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.
Context costs VRAM too. At Q4_K_M on the Apple M2 Pro: 8K 9.1 GB · 32K 10.7 GB · 128K 17.1 GB. Every window this model publishes still fits 32 GB.
What to do next
Nothing to change — run it at Q4_K_M. If you want more capability, check whether the next size up also fits.
No compatible GPU? Gemma 3 12B Instruct on 16 GB of system RAM, CPU only: runs, but it is tight.
Running Gemma 3 12B Instruct on this card:
Gemma 3 12B Instruct needs ~9 GB but this GPU has 32 GB. Rent a RTX 4090 (24 GB)-class GPU by the hour instead of buying one:
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Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.
Other Gemma 3 sizes on the Apple M2 Pro
- Gemma 3 27B Instruct — runs (18.4 GB)
- Gemma 3 4B Instruct — runs (3.6 GB)
- Gemma 3 1B Instruct — runs (1.5 GB)
Gemma 3 12B Instruct on nearby hardware
- AMD Radeon RX 7900 XTX (24 GB) — runs
- Apple M3 Pro (36 GB) — runs
All Gemma 3 sizes on the Apple M2 Pro | Gemma 3 12B Instruct model page | Apple M2 Pro GPU page | VRAM calculator | Check your hardware