RTX 5090 does not meet the minimum VRAM requirement for Q4 inference of Qwen/Qwen3-Coder-Next. Review the quantization breakdown below to see how higher precision settings impact VRAM and throughput.
RTX 5090 lacks sufficient VRAM for comfortable Qwen/Qwen3-Coder-Next operation with Q4 quantization.
Your 32GB GPU is 13GB short of the 45GB minimum.
Options: (1) Try Q2 or Q3 quantization for lower VRAM requirements, (2) Consider cloud GPU rental, (3) Upgrade to a GPU with at least 16GB VRAM.
| Quantization | VRAM needed | VRAM available | Estimated speed | Verdict |
|---|---|---|---|---|
| Q4 | 45GB | 32GB | 60.48 tok/s | ❌ Not recommended |
| Q8 | 90GB | 32GB | 39.71 tok/s | ❌ Not recommended |
| FP16 | 179GB | 32GB | 22.46 tok/s | ❌ Not recommended |