can i run · seo
No — Gemma 3 12B won't fit 2x RTX 3090 (48GB) at Q4
Gemma 3 12B needs 8.1GB+ and exceeds 2x RTX 3090 (48GB). Try a smaller quant or model.
Multimodal 12B. Q4 ~8 GB, Q5 ~10 GB. Excellent on 12 GB cards.
Alternatives that do fit 2x RTX 3090 (48GB):
faq · straight answers
Can Gemma 3 12B run on 2x RTX 3090 (48GB)?
Gemma 3 12B needs 8.1GB+ and exceeds 2x RTX 3090 (48GB). Try a smaller quant or model. Model context 128k. Compare with all models or re-check with your exact specs on the bench.
What if it OOMs?
Unload with ollama stop, cap layers --num-gpu 28, cut context to 2k. See the OOM fixer on the homepage.
Q4 or Q8 on this rig?
Start Q4. Bigger model at Q4 beats smaller at Q8. Only go Q8 if 2GB+ headroom remains.
How fast will it be?
Slower than GPU — this combo needs offload. Pick a smaller model for interactive chat.
Is Gemma commercial-safe?
Gemma — check terms before commercial use. Filter commercial-safe on the bench.
also fits 2x RTX 3090 (48GB)
Gemma 3 12B on other rigs