Can I Run / Gemma 3 12B / on NVIDIA RTX 2080 Ti

Can I Run Gemma 3 12B on a NVIDIA RTX 2080 Ti?

Yes

Runs at Q5_K_M — good quality with reasonable headroom.

Model size
12.2B
GPU memory
11.0GB
Smallest quant
Q2_K
Best fit
Q5_K_M

10 quantizations fit your 11.0GB

QuantMin VRAMRecommendedFile sizeHeadroom
Q5_K_MBEST9.7 GB11.2 GB8.4 GB+1.3 GB
Q5_K_S9.4 GB10.9 GB8.2 GB+1.6 GB
Q4_18.6 GB10.1 GB7.6 GB+2.4 GB
Q4_K_M8.4 GB9.9 GB7.3 GB+2.6 GB
Q4_K_S8.0 GB9.5 GB6.9 GB+3.0 GB
Q4_07.9 GB9.4 GB6.9 GB+3.1 GB
Q3_K_L6.4 GB7.9 GB6.5 GB+4.6 GB
Q3_K_M6.1 GB7.6 GB6.0 GB+4.9 GB
Q3_K_S5.7 GB7.2 GB5.5 GB+5.3 GB
Q2_K5.0 GB6.5 GB4.8 GB+6.0 GB

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Full model details
Gemma 3 12B

All quant variants, benchmark scores, and use-case tags.

Best models for this GPU
NVIDIA RTX 2080 Ti

Top-ranked open-source models that fit in 11.0GB.

FAQ

Can the NVIDIA RTX 2080 Ti run Gemma 3 12B?

Yes. The NVIDIA RTX 2080 Ti's 11.0GB of VRAM is enough to run Gemma 3 12B at Q5_K_M quantization (9.7GB required).

What's the best quantization to use?

Q5_K_M is the highest-precision quantization that fits in your 11.0GB. It uses about 9.7GB of memory and 11.2GB recommended for comfortable inference.

What if I need more headroom for context length?

KV cache memory grows with context length. The numbers above assume a baseline 2K-4K context. For long-context use (32K+), add another 2-6GB depending on the model architecture.