large model · Officially released product · Updated 2026-09-06
Integrated memory 128GB · Usable space for model approximately 114GB
MacBook Pro M3 Max 128GB Local LLM Speed/Memory/Electricity Rate
This is an M3 generation high-end laptop configuration that exclusively loads the 70B class and Flash-Next (180B resident) Q4 model with 400 GB/s integrated bandwidth and 128GB large memory.
Core specifications
- available memory
- 114GB
- Memory bandwidth
- 400GB/s
- local LLM sustained load
- about 110W
- Korean price range (KRW)
- 509–630 × KRW 10,000
a person who fits well
- Utilizes 114GB of available memory
- Quiet finished product composition
- Qwen3.8-Flash-Next level local inference
Check before purchasing
Unified memory is advantageous for loading large models, but CUDA-specific tools and multi-GPU workflows should be explored separately.
4K context · Q4 model-specific expected performance
| Model | required memory | Decode | First token | Prefill |
|---|---|---|---|---|
| Gemma 4 12B MLX 4-bit | 8GB | 41.9 ~ 46.5 tok/s | 5.4 ~ 11.0 s | 372 ~ 757 tok/s |
| Qwen3.8-Flash-Next MLX 4-bit | 107.13GB | 15.4 ~ 32.2 tok/s | 5.9 ~ 12.3 s | 335 ~ 702 tok/s |
Single-user expected range and may vary depending on runtime, cooling, and quantization files.
Frequently Asked Questions
What LLM can be run on an MBP M3 Max 128GB?
Gemma 4 12B, Qwen3.8-Flash-Next, and others can be compared with 4K input and device-specific recommended formats. The required memory varies depending on the model and context length.
What is the power consumption of a local LLM on an MBP M3 Max 128GB?
Expected to draw approximately 110W under sustained load, with an actual range estimated between 75–140W.
Are the displayed token speeds ground truth?
This is an estimated range calibrated to the calculator against official hardware specifications and verified benchmark ranges. Runtime, cooling, quantization may vary depending on file and context length.