RTX 3070 meets the minimum VRAM requirement for Q4 inference of Qwen/Qwen3-8B. Review the quantization breakdown below to see how higher precision settings impact VRAM and throughput.
RTX 3070 can run Qwen/Qwen3-8B with Q4 quantization. At approximately 73 tokens/second, you can expect Good speed - acceptable for interactive use.
You have 4GB headroom, which is sufficient for system overhead and smooth operation.
| Quantization | VRAM needed | VRAM available | Estimated speed | Verdict |
|---|---|---|---|---|
| Q4 | 4GB | 8GB | 72.66 tok/s | ✅ Fits comfortably |
| Q8 | 9GB | 8GB | 58.46 tok/s | ❌ Not recommended |
| FP16 | 17GB | 8GB | 27.52 tok/s | ❌ Not recommended |