Compatibility Check
Can I Run DeepSeek R1 671B on Apple M4 Ultra?
Mostly — Apple M4 Ultra runs DeepSeek R1 671B (Q2_K) with partial GPU offload. Expect slower speeds than a fully fitting card.
Estimated ~2 tokens/sec on the Q2_K quantization.
Partial GPU
Best variant: Q2_K
Partial GPU offload — 256 GB VRAM is above the 245 GB minimum but below the 260 GB recommendation. Some layers will spill to RAM.
- GPU VRAM
- 256 GB
- Min VRAM (best fit)
- 245 GB
- Recommended VRAM
- 260 GB
- Estimated tok/s
- ~2
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Every DeepSeek R1 671B quantization on Apple M4 Ultra
Each row runs the compatibility engine against your VRAM, RAM, and the model's requirements.
| Quantization | File Size | Min VRAM | Rec VRAM | Context | Verdict | Estimated tok/s |
|---|---|---|---|---|---|---|
| Q2_KBest fit | 240 GB | 245 GB | 260 GB | 4K / 128K | Partial GPU | ~2 |
| Q4_K_M | 380 GB | 385 GB | 400 GB | 4K / 128K | Can't Run | — |
Apple M4 Ultra is solid pick for DeepSeek R1 671B
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