RTX 5090 meets the minimum VRAM requirement for Q4 inference of Qwen/Qwen3-30B-A3B-Instruct-2507. Review the quantization breakdown below to see how higher precision settings impact VRAM and throughput.
RTX 5090 can run Qwen/Qwen3-30B-A3B-Instruct-2507 with Q4 quantization. At approximately 155 tokens/second, you can expect Excellent speed - conversational response times under 1 second.
You have 17GB headroom, which is sufficient for system overhead and smooth operation.
| Quantization | VRAM needed | VRAM available | Estimated speed | Verdict |
|---|---|---|---|---|
| Q4 | 15GB | 32GB | 155.00 tok/s | ✅ Fits comfortably |
| Q8 | 31GB | 32GB | 116.31 tok/s | ⚠️ Tight fit |
| FP16 | 61GB | 32GB | 60.94 tok/s | ❌ Not recommended |