DeepSeek R1 671B needs ~489.0 GB but NVIDIA GB200 192GB only has 192.0 GB. Try a smaller quantization or lighter model.
Operating mode
Interactive favors responsiveness, while light API and scale-out lean harder on serving readiness. The fit stays the same, but the recommendation lens changes.
Current mode
Balanced
Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.
Select quantization to explore
297.0 GB over capacity — needs offload or smaller quantization
Fit status
Too heavy
Decode
8.7 tok/s
TTFT
22246 ms
Safe context
4K
Memory
489.0 GB / 192.0 GB
Offload
60%
Usable VRAM is the main blocker for this model.
Not enough usable memory
The model needs 489.0 GB, but this setup only exposes 192.0 GB of usable VRAM.
Add more VRAM headroom
The first useful upgrade is more dedicated VRAM so you can fit the model without shrinking context or dropping to a much lower quant.
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | F | Too heavy | 9.7 tok/s | 10939 ms | 4K |
| Coding | F | Too heavy | 8.7 tok/s | 22246 ms | 4K |
| Agentic Coding | F | Too heavy | 7.2 tok/s | 39116 ms | 4K |
| Reasoning | F | Too heavy | 8.7 tok/s | 26291 ms | 4K |
| RAG | F | Too heavy | 7.2 tok/s | 48895 ms | 4K |
How DeepSeek R1 671B (671B params) fits at each quantization level on NVIDIA GB200 192GB (192.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 261.7 GB | Low | F0 |
Q3_K_S | 3 | 328.8 GB | Low | F0 |
NVFP4 | 4 | 375.8 GB | Medium | F0 |
Q4_K_M | 4 | 409.3 GB | Medium | F0 |
Q5_K_M | 5 | 483.1 GB | High | F0 |
Q6_K | 6 | 550.2 GB | High | F0 |
Q8_0 | 8 | 718.0 GB | Very High | F0 |
F16 | 16 | 1375.6 GB | Maximum | F0 |
No, DeepSeek R1 671B requires more memory than NVIDIA GB200 192GB provides.
DeepSeek R1 671B (671B parameters) requires approximately 489.0 GB of memory with Q4_K_M quantization.
The recommended quantization for DeepSeek R1 671B is Q4_K_M, which balances quality and memory efficiency.
On NVIDIA GB200 192GB, DeepSeek R1 671B achieves approximately 8.7 tokens per second decode speed with a time-to-first-token of 22246ms using Q4_K_M quantization.
For coding workloads, DeepSeek R1 671B on NVIDIA GB200 192GB receives a F grade with 8.7 tok/s and 4K context.
On NVIDIA GB200 192GB, DeepSeek R1 671B can safely use up to 4K tokens of context. The model's official context limit is 131K, but available memory constrains the safe maximum.
Add more VRAM headroom. The first useful upgrade is more dedicated VRAM so you can fit the model without shrinking context or dropping to a much lower quant.
Paste this snippet into any page to show a live fit card.
<iframe src="https://willitrunai.com/embed/deepseek-r1-671b-on-gb200-192gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
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