Openai Gpt Oss 120B speed on NVIDIA H200 SXM 141GB and quantization-level VRAM fit.
NVIDIA H200 SXM 141GB meets the minimum VRAM requirement for Q4 inference of Openai Gpt Oss 120B. Review the quantization breakdown below to see how higher precision settings impact VRAM and throughput.
NVIDIA H200 SXM 141GB can run Openai Gpt Oss 120B with Q4 quantization. At approximately 138 tokens/second, you can expect Excellent speed - conversational response times under 1 second.
You have 81GB headroom, which is sufficient for system overhead and smooth operation.
| Quantization | VRAM needed | VRAM available | Estimated speed | Verdict |
|---|---|---|---|---|
| Q4 | 60GB | 141GB | 137.85 tok/s | ✅ Fits comfortably |
| Q8 | 120GB | 141GB | 96.50 tok/s | ✅ Fits comfortably |
| FP16 | 240GB | 141GB | 52.38 tok/s | ❌ Not recommended |
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NVIDIA H200 SXM 141GB can run Openai Gpt Oss 120B at Q4 with an estimated 138 tok/s.
Q4 inference is estimated to need about 60GB VRAM on this page, while NVIDIA H200 SXM 141GB has 141GB available.
If you need more speed or context headroom, compare alternative GPUs below and check higher-tier VRAM options.