Run Gemma 3 27B on M5 Max

Yes — Gemma 3 27B (27B) runs at 42 tok/s on M5 Max with 64 GB RAM using Q4_K_M quantization via Ollama. First token latency is 0.9s. Google's 27B dense model, best-in-class reasoning for 24–48 GB Macs.

Speed
42
tok/s
First Token
0.9
seconds
RAM Needed
64
GB minimum
Engine
Ollama
recommended
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Benchmark Details

The LLMCheck index estimates Gemma 3 27B on M5 Max using our published methodology: Q4_K_M quantization, memory-bandwidth scaling, and cross-referenced third-party benchmarks where available. Figures are transparent estimates — own this config? Submit a real benchmark →

MetricValue
Tokens per second42 tok/s
Time to first token0.9s
QuantizationQ4_K_M
Minimum RAM64 GB
Recommended engineOllama
Parameters27B
Benchmark date2026-03

Q4_K_M 27B Ollama M5 Max

Setup Guide: Run Gemma 3 27B on M5 Max

The recommended engine for Gemma 3 27B on M5 Max is Ollama. Install Ollama, then pull the model:

ollama run gemma3:27b

Ollama handles quantization automatically — it will download the Q4_K_M variant (~64 GB) and start an interactive chat session.

Performance on Other Apple Silicon Chips

ChipSpeedFirst TokenMin RAMEngine
M4 Max 35 tok/s 1.1s 48 GB MLX
M3 Max 28 tok/s 1.3s 96 GB MLX
M4 Pro 25 tok/s 1.5s 24 GB LM Studio

System Requirements

To run Gemma 3 27B on M5 Max you need:

🛒 Get a Mac that runs Gemma 3 27B

Gemma 3 27B needs about 64 GB of unified memory. These current Apple Silicon Macs have the headroom to run it comfortably:

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