RX 7900 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 7900 XT can run deepseek-ai/DeepSeek-R1 with Q4 quantization. At approximately 129 tokens/second, you can expect Excellent speed - conversational response times under 1 second.
You have 16GB headroom, which is sufficient for system overhead and smooth operation.
| Quantization | VRAM needed | VRAM available | Estimated speed | Verdict |
|---|---|---|---|---|
| Q4 | 4GB | 20GB | 128.91 tok/s | ✅ Fits comfortably |
| Q8 | 7GB | 20GB | 93.35 tok/s | ✅ Fits comfortably |
| FP16 | 15GB | 20GB | 50.63 tok/s | ✅ Fits comfortably |