MacBook Pro M5 Max 128GB Integrated memory 128GB · Usable space for model approximately 114GB
614 GB/s integrated memory bandwidth and 128 GB memory for high bandwidth loading of large models and Flash-Next (180B resident) Q4 models.
Speed and memory for the same model
Hardware core specifications
- Available memory
- 114GB
- Memory bandwidth
- 614GB/s
- Estimated sustained LLM load
- About 120W
- Korean price range (KRW)
- 1,141 × KRW 10,000–1,141 × KRW 10,000
Who it fits
- Utilizes 114GB of available memory
- Quiet finished product composition
- Qwen3.8-Flash-Next level local inference
Skip it if
Unified memory is advantageous for loading large models, but CUDA-specific tools and multi-GPU workflows should be explored separately.
Recommended format for each device 4K input
The model you will experience with this equipment
K2 Horizon 0.9B
Required 1.03GB · spare time
MLX 4-bit
Decode
857.3 ~ 950 tok/s
First token
0.41 to 0.80 seconds
Qwen3.8-Flash-Next
recommendedRequired 107.13GB · titration
MLX 4-bit
Decode
38.5 ~ 54 tok/s
First token
3.9 ~ 7.8 s
Actual speed varies with runtime version, cooling, context length and quantization file.
On sales pages, look at memory before chips.
The model and speed assumptions above change if the product is not the 128GB configuration.
Frequently asked questions
- What LLM can be run on an MBP M5 Max 128GB?
- K2 Horizon 0.9B, Qwen3.8-Flash-Next and others with a 4K input and the recommended format. Required memory varies by model and context length.
- What is the power consumption of a local LLM on an MBP M5 Max 128GB?
- Sustained load is about 120 W, with an actual range of 85–140 W.
- Are the displayed token speeds ground truth?
- This is a range aligned to collected benchmark measurements under the same conditions. Combinations without a matching measurement are estimated from the nearest result and vary with runtime, cooling, quantization file and context length.
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