M1 Ultra 128GB vs M5 Ultra 256GB
For running local LLMs · 2 reports across 2 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 Ultra 128GB | M5 Ultra 256GB |
|---|---|---|
| DeepSeek V4up to 284B | 16.0n=1 | — |
| Qwen3.8up to 2400B | 31.2n=1 | — |