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Yes. DeepSeek R1 Distill Qwen 14B fits in fast memory on M2 Ultra 128GB at Q8_0 (17.3 GB needed, 96.0 GB usable), about 40 tok/s (estimate).
Hardware: M2 Ultra 128GB · Model: DeepSeek R1 Distill Qwen 14B
M2 Ultra 128GB has 128 GB of unified memory and 800 GB/s of memory bandwidth. The checker leaves macOS a share of unified memory, so Ollama can use 96.0 GB. DeepSeek R1 Distill Qwen 14B (14.8B, DeepSeek) at Q8_0 is a 16 GB download and needs 17.3 GB with headroom for about 8k tokens.
| Best quant | Q8_0 |
|---|---|
| Download size | 16 GB |
| Memory needed | 17.3 GB |
| Usable fast memory | 96.0 GB |
| Fit | fits in fast memory |
| Estimated speed | ~40 tok/s (estimate) |
| Command | ollama run deepseek-r1:14b-qwen-distill-q8_0 |
Estimates, not benchmarks. Model sizes are ollama.com download sizes; memory needed adds headroom for ~8k tokens of context; speeds are rough figures from memory bandwidth. Data updated 2026-10-23.
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