NVIDIA L40S meets the minimum VRAM requirement for Q4 inference of Qwen/Qwen3-TTS-12Hz-1.7B-CustomVoice. Review the quantization breakdown below to see how higher precision settings impact VRAM and throughput.
NVIDIA L40S can run Qwen/Qwen3-TTS-12Hz-1.7B-CustomVoice with Q4 quantization. At approximately 169 tokens/second, you can expect Excellent speed - conversational response times under 1 second.
You have 44GB headroom, which is sufficient for system overhead and smooth operation.
| Quantization | VRAM needed | VRAM available | Estimated speed | Verdict |
|---|---|---|---|---|
| Q4 | 4GB | 48GB | 168.90 tok/s | ✅ Fits comfortably |
| Q8 | 8GB | 48GB | 116.37 tok/s | ✅ Fits comfortably |
| FP16 | 16GB | 48GB | 59.69 tok/s | ✅ Fits comfortably |