RX 6900 XT meets the minimum VRAM requirement for Q4 inference of deepseek-ai/DeepSeek-R1. Review the quantization breakdown below to see how higher precision settings impact VRAM and throughput.
RX 6900 XT can run deepseek-ai/DeepSeek-R1 with Q4 quantization. At approximately 82 tokens/second, you can expect Good speed - acceptable for interactive use.
You have 12GB headroom, which is sufficient for system overhead and smooth operation.
| Quantization | VRAM needed | VRAM available | Estimated speed | Verdict |
|---|---|---|---|---|
| Q4 | 4GB | 16GB | 81.87 tok/s | ✅ Fits comfortably |
| Q8 | 7GB | 16GB | 58.71 tok/s | ✅ Fits comfortably |
| FP16 | 15GB | 16GB | 32.05 tok/s | ⚠️ Tight fit |