RTX 4090 meets the minimum VRAM requirement for Q4 inference of deepseek-ai/DeepSeek-OCR. Review the quantization breakdown below to see how higher precision settings impact VRAM and throughput.
RTX 4090 can run deepseek-ai/DeepSeek-OCR with Q4 quantization. At approximately 212 tokens/second, you can expect Excellent speed - conversational response times under 1 second.
You have 22GB headroom, which is sufficient for system overhead and smooth operation.
| Quantization | VRAM needed | VRAM available | Estimated speed | Verdict |
|---|---|---|---|---|
| Q4 | 2GB | 24GB | 211.93 tok/s | ✅ Fits comfortably |
| Q8 | 4GB | 24GB | 157.54 tok/s | ✅ Fits comfortably |
| FP16 | 7GB | 24GB | 88.72 tok/s | ✅ Fits comfortably |