RTX 4070 Ti meets the minimum VRAM requirement for Q4 inference of Qwen/Qwen3-4B. Review the quantization breakdown below to see how higher precision settings impact VRAM and throughput.
RTX 4070 Ti can run Qwen/Qwen3-4B with Q4 quantization. At approximately 86 tokens/second, you can expect Good speed - acceptable for interactive use.
You have 10GB headroom, which is sufficient for system overhead and smooth operation.
| Quantization | VRAM needed | VRAM available | Estimated speed | Verdict |
|---|---|---|---|---|
| Q4 | 2GB | 12GB | 86.00 tok/s | ✅ Fits comfortably |
| Q8 | 4GB | 12GB | 56.65 tok/s | ✅ Fits comfortably |
| FP16 | 9GB | 12GB | 36.58 tok/s | ✅ Fits comfortably |