RTX 3070 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 3070 can run Qwen/Qwen3-4B with Q4 quantization. At approximately 79 tokens/second, you can expect Good speed - acceptable for interactive use.
You have 6GB headroom, which is sufficient for system overhead and smooth operation.
| Quantization | VRAM needed | VRAM available | Estimated speed | Verdict |
|---|---|---|---|---|
| Q4 | 2GB | 8GB | 79.04 tok/s | ✅ Fits comfortably |
| Q8 | 4GB | 8GB | 55.49 tok/s | ✅ Fits comfortably |
| FP16 | 9GB | 8GB | 28.00 tok/s | ❌ Not recommended |