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Gemma 4 2BvsGemma 3 27B

Complete comparison between Gemma 4 2B (2B parameters, Google) and Gemma 3 27B (27B, Google). VRAM required by quantization, tokens per second measured on 4 reference GPUs, verdict by use case, license, and installation commands. All figures are calculated from the catalog data—no copy-pasting between pages.

In brief

Feature Gemma 4 2B Gemma 3 27B
Settings 2B 27B
Family Gemma Gemma
Author Google Google
Origin US US
License Gemma Gemma
Context 128,000 tokens 128,000 tokens
Output May 6, 2026 March 2025

Memory footprint

Approximate VRAM required for inference with an average context window. The winner (in green) is the model that uses less — smaller models have the edge.

Quantization Gemma 4 2B Gemma 3 27B
Q4_K_M (lightweight) 1.2 GB 16 GB
Q5_K_M (balanced) 1.4 GB 19 GB
Q8 (near-lossless) 2.1 GB 29 GB
FP16 (max quality) 4 GB 54 GB
CPU-only RAM 2.6 GB 28 GB

Estimated speed (tokens/second)

Estimates based on the best quantization that can fit on each GPU. Actual figures depend on the prompt, context, and engine (llama.cpp, vLLM, MLX). Methodology.

Reference GPU Gemma 4 2B Gemma 3 27B
RTX 4090 (24 GB) 200 tok/s · FP16 32 tok/s · Q5_K_M
RTX 4080 (16 GB) 100 tok/s · FP16 13 tok/s · Q4_K_M
RTX 3060 12GB (12 GB) 35 tok/s · FP16 ✗ too heavy
Apple M4 Pro (48 GB) (36 GB) 100 tok/s · FP16 13 tok/s · Q8

Verdict by use case

For each common use case, we indicate which of the two is better suited based on its tags, size, and specialization.

General chat
Gemma 3 27B wins. Best capacity-to-constraints ratio for this use case.
Vision / image
Gemma 3 27B wins. Natively supports image inputs.
RAG / long documents
Gemma 3 27B wins. Larger context window (128,000 tokens), suitable for long documents.
Agents & tool use
Gemma 3 27B wins. Best at tool use and following multi-step instructions.
Lightweight deployment
Gemma 4 2B wins. Lighter (2B parameters), runs on modest configurations.
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Strengths and weaknesses

Google · 2B

Gemma 4 2B

Gemma 4 base 2B multimodal (text+image), Gemma license, 128k ctx. Runs on an integrated GPU or Raspberry Pi 5. Released May 2026.

  • Fits on integrated GPU (1.2 GB Q4 VRAM)
  • Text + image multimodal
  • License Gemma
  • 128k context on 2B
  • Limited reasoning vs. 4B/26B
  • Gated model on Hugging Face (click-through)

Installation

ollama run gemma4
Google · 27B

Gemma 3 27B

High-end Gemma. LMArena Elo 1338 — beats Llama 3.1 405B at 15× smaller size.

  • LMArena Elo 1338: beats Llama 3.1 405B while being 15× smaller
  • Multimodal
  • 128k ctx
  • License Gemma
  • No thinking mode

Installation

ollama run gemma3:27b

Frequently asked questions

Which model runs best on RTX 4090 (24 GB): Gemma 4 2B or Gemma 3 27B?

On an RTX 4090, Gemma 4 2B runs at FP16 (~200 tok/s), Gemma 3 27B in Q5_K_M (~32 tok/s). In pure throughput terms, Gemma 4 2B wins. See the configurator to test your exact GPU.

Which uses the least VRAM?

In Q4_K_M, Gemma 4 2B fits in 1.2 GB versus 16 GB for its rival — a 14.8 GB gap, significant if you are targeting an RTX 3060 or an 8 GB 4060 Ti.

Can these models be used in commercial production?

Gemma 4 2B is under Gemma — check the restrictions (especially the monthly user thresholds). Gemma 3 27B is under Gemma — also check the terms. For SaaS, prefer Apache 2.0 or MIT.

Which one should you choose in 2026?

Depends on your primary constraint. Smaller / faster: Gemma 4 2B (2B). More capable: Gemma 3 27B (27B). If you're unsure, run the configurator with your GPU and use case — it will decide based on both.

Alternatives to consider

If neither works for you, here are some neighboring models you could explore.

Go further