NVIDIA H200 SXM 141GB 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 H200 SXM 141GB can run Qwen/Qwen3-TTS-12Hz-1.7B-CustomVoice with Q4 quantization. At approximately 731 tokens/second, you can expect Excellent speed - conversational response times under 1 second.
You have 137GB headroom, which is sufficient for system overhead and smooth operation.
| Quantization | VRAM needed | VRAM available | Estimated speed | Verdict |
|---|---|---|---|---|
| Q4 | 4GB | 141GB | 731.07 tok/s | ✅ Fits comfortably |
| Q8 | 8GB | 141GB | 500.58 tok/s | ✅ Fits comfortably |
| FP16 | 16GB | 141GB | 286.02 tok/s | ✅ Fits comfortably |