Yes — with 6.1 GB to spare

Gemma 3 12B at Q4_K_M fits your GeForce RTX 4060 Ti 16 GB entirely on the GPU at 8K context, at an estimated 25 tokens per second. Past 106K the KV cache pushes it over — quantise the cache to q8_0, or step down a quantisation, to go longer.

Fully on GPU 8K context Q4_K_M · 6.9 GB Gemma Terms of Use Released Mar 2025 Vision

Strong multilingual chat with images, sized for 12–16 GB cards. Gemma 4 12B is the same size and better.

What hardware do I need for Gemma 3 12B? →

The VRAM budget

weights 6.9 GB
Weights 6.9 GB KV cache @ 8K 0.81 GB Runtime overhead 0.6 GB Free 6.1 GB of 14.4 GB

Quantisation ladder

QuantWeightsTotal @ 8KMax contextTok/sQualityFit
F16 22.7 GB 24.1 GB ~2.9 Reference 9.7 GB over
Q8_0 12.1 GB 13.5 GB 22K 14 −0.1% ppl Long context
Q6_K 9.3 GB 10.7 GB 66K 19 −0.4% ppl Long context
Q5_K_M 8.1 GB 9.5 GB 86K 22 −0.8% ppl Long context
Q4_K_M 6.9 GB 8.3 GB 106K 25 −1.9% ppl Recommended
Q3_K_M 5.6 GB 7.0 GB 126K 31 −5.4% ppl Long context
Q2_K 4.8 GB 6.2 GB 128K 37 −15% ppl Long context

Quality is the published perplexity delta against f16 weights. Max context assumes an f16 KV cache; q8_0 roughly doubles it. This model interleaves sliding-window layers (1024 tokens, 1 global in 6), which is why its cache barely grows with context.

How to run it

terminal
$ ollama pull gemma3:12b
$ OLLAMA_CONTEXT_LENGTH=8192 \
    ollama run gemma3:12b

The default. One binary, a model registry, an OpenAI-compatible port. More on Ollama.

01Download is 6.9 GB. Keep it on an SSD — a first load off a spinning disk takes minutes.
02Close anything else holding VRAM. A browser with hardware acceleration can sit on 1–2 GB.
03There is room to go to 106K context on this card.
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