RTX 4070 meets the minimum VRAM requirement for Q4 inference of Qwen/Qwen2.5-0.5B-Instruct. Review the quantization breakdown below to see how higher precision settings impact VRAM and throughput.
RTX 4070 can run Qwen/Qwen2.5-0.5B-Instruct with Q4 quantization. At approximately 91 tokens/second, you can expect Good speed - acceptable for interactive use.
You have 9GB headroom, which is sufficient for system overhead and smooth operation.
| Quantization | VRAM needed | VRAM available | Estimated speed | Verdict |
|---|---|---|---|---|
| Q4 | 3GB | 12GB | 90.55 tok/s | ✅ Fits comfortably |
| Q8 | 5GB | 12GB | 63.93 tok/s | ✅ Fits comfortably |
| FP16 | 11GB | 12GB | 29.21 tok/s | ⚠️ Tight fit |