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The Mac Mini M4 Pro with 24 GB of unified memory is the best-value Apple option for local LLMs because 24 GB comfortably runs 8B models and most 14B models at Q4 quantization. Unified memory is shared between CPU and GPU, so there is no separate VRAM budget to manage.
An 8B model at Q4 uses roughly 5 GB; a 14B model uses roughly 9-10 GB. With 24 GB total, the M4 Pro leaves ample room for the context window, the operating system, and other apps. The base Mac Mini M4 with 16 GB runs 8B models but has tight headroom for anything larger.
The M4 uses Apple Metal for GPU acceleration, and Ollama and LM Studio support it with no driver setup. Choose the base 16 GB M4 if you only run 8B models and want the lowest price. Choose the M4 Pro 24 GB if you want room to grow into 14B models. For pricing, check current Apple and retailer listings โ configurations vary.
The deciding factor is unified memory size โ it sets the largest model you can run. Prices vary by retailer and configuration; check current listings before buying.
| Configuration | Unified Memory | Largest model (Q4) | Best for |
|---|---|---|---|
| Mac Mini M4 (base) | 16 GB | 8B comfortably | Lowest price, 8B only |
| Mac Mini M4 Pro | 24 GB | 14B comfortably | Best value โ room to grow |
| Mac Mini M4 Pro (upgraded) | 48 GB+ | 30B-class | Larger models, higher cost |