RTX 4090 meets the minimum VRAM requirement for Q4 inference of Qwen/Qwen3-0.6B. Review the quantization breakdown below to see how higher precision settings impact VRAM and throughput.
RTX 4090 can run Qwen/Qwen3-0.6B with Q4 quantization. At approximately 195 tokens/second, you can expect Excellent speed - conversational response times under 1 second.
You have 21GB headroom, which is sufficient for system overhead and smooth operation.
| Quantization | VRAM needed | VRAM available | Estimated speed | Verdict |
|---|---|---|---|---|
| Q4 | 3GB | 24GB | 194.59 tok/s | ✅ Fits comfortably |
| Q8 | 6GB | 24GB | 120.80 tok/s | ✅ Fits comfortably |
| FP16 | 13GB | 24GB | 74.98 tok/s | ✅ Fits comfortably |