RX 7800 XT meets the minimum VRAM requirement for Q4 inference of Qwen/Qwen3-8B-Base. Review the quantization breakdown below to see how higher precision settings impact VRAM and throughput.
RX 7800 XT can run Qwen/Qwen3-8B-Base with Q4 quantization. At approximately 92 tokens/second, you can expect Good speed - acceptable for interactive use.
You have 12GB headroom, which is sufficient for system overhead and smooth operation.
| Quantization | VRAM needed | VRAM available | Estimated speed | Verdict |
|---|---|---|---|---|
| Q4 | 4GB | 16GB | 92.40 tok/s | ✅ Fits comfortably |
| Q8 | 9GB | 16GB | 68.63 tok/s | ✅ Fits comfortably |
| FP16 | 17GB | 16GB | 35.28 tok/s | ❌ Not recommended |