M1 Max 64GB vs M1 Ultra 128GB
For running local LLMs · 6 reports across 3 models
Highest reported generation speed by model family
These maxima come from different community setups. Model size, quantization, GPU count, offloading and concurrency may differ. They do not establish which GPU is faster for the same workload. Check the comparison conditions →
| Model | M1 Max 64GB | M1 Ultra 128GB |
|---|---|---|
| Qwen3.8up to 2400B | 21.0n=3 | 31.2n=1 |
| DeepSeek V4up to 284B | — | 16.0n=1 |
| DeepSeek V4 Flashup to 285B | 8.0n=1 | — |