Gemma 3 — local AI model by Google

Written by Jakub Rusinowski · Last updated

Gemma 3 delivers exceptional quality-per-VRAM ratio, with the 4B model outperforming many 7B competitors. Features multimodal capabilities and a 128k context window across all sizes. Previous generation — superseded by Gemma 4 (E2B/E4B/26B-A4B/31B and the 12B Unified follow-up), which improves efficiency and multimodal support. Still widely used and supported.

Variants

The smallest Gemma 3 variant needs about 1 GB of VRAM at Q4_K_M — quantized weights plus framework overhead, before any KV cache.

ModelVRAM
Gemma 3 1B Instruct →
1B
~1.4 GB
Gemma 3 4B Instruct →
4B
~3.2 GB
Gemma 3 12B Instruct →
12B
~8 GB
Gemma 3 27B Instruct →
27B
~17.1 GB

Memory is quantized weights plus overhead at Q4_K_M, from the same engine as the GPU & VRAM checker.

How to run Gemma 3 locally

Install Ollama, then pull the tag.

ollama run gemma3:1b

Pick a size above for its own VRAM figure, speed estimate and install command.

Licence

Gemma TermsCommercial use permitted

Weights are downloadable and commercial use is permitted, subject to the licence’s acceptable-use terms.

Applies to: Gemma 3 1B Instruct, Gemma 3 4B Instruct, Gemma 3 12B Instruct, Gemma 3 27B Instruct

Recommended GPU

The cheapest catalogued GPU that runs Gemma 3 locally (min 1 GB VRAM) is the Intel Arc B570 (10 GB).

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Intel Arc B570 10GB
10 GB VRAM · 150 W board power
2026 prices are volatile — check the current listing.

Can I run Gemma 3 on my GPU?

Gemma 3 — frequently asked questions

How much VRAM does Gemma 3 need?

Gemma 3 needs about 1 GB VRAM at Q4_K_M quantization for its smallest variant. Variants: Gemma 3 1B Instruct (1 GB, Q4_K_M); Gemma 3 4B Instruct (3 GB, Q4_K_M); Gemma 3 12B Instruct (8 GB, Q4_K_M); Gemma 3 27B Instruct (17 GB, Q4_K_M). On Apple Silicon, unified memory counts toward this requirement.

Can I run Gemma 3 on an RTX 4090 (24 GB)?

Yes — Gemma 3 runs on an RTX 4090 (24 GB) and other 24 GB cards such as the RTX 3090. Smaller variants also fit comfortably on 8–16 GB GPUs at Q4_K_M.

What quantization should I use for Gemma 3?

Q4_K_M is the best balance of quality and VRAM for Gemma 3 in most cases. Choose Q8_0 for near-lossless quality if you have spare VRAM, or smaller quants (Q3/Q2) only when memory is tight.

How do I run Gemma 3 with Ollama?

Install Ollama, then run: ollama run gemma3:1b. This downloads Gemma 3 and starts a local, OpenAI-compatible endpoint — no internet connection is needed after the initial download.