Openai Gpt Oss 20B speed on AMD Ryzen AI Max 385 and quantization-level VRAM fit.
AMD Ryzen AI Max 385 meets the minimum VRAM requirement for Q4 inference of Openai Gpt Oss 20B. Review the quantization breakdown below to see how higher precision settings impact VRAM and throughput.
AMD Ryzen AI Max 385 can run Openai Gpt Oss 20B with Q4 quantization. At approximately 20 tokens/second, you can expect Moderate speed - useful for batch processing.
You have 118GB headroom, which is sufficient for system overhead and smooth operation.
| Quantization | VRAM needed | VRAM available | Estimated speed | Verdict |
|---|---|---|---|---|
| Q4 | 10GB | 128GB | 20.07 tok/s | ✅ Fits comfortably |
| Q8 | 20GB | 128GB | 14.05 tok/s | ✅ Fits comfortably |
| FP16 | 40GB | 128GB | 7.63 tok/s | ✅ Fits comfortably |
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AMD Ryzen AI Max 385 can run Openai Gpt Oss 20B at Q4 with an estimated 20 tok/s.
Q4 inference is estimated to need about 10GB VRAM on this page, while AMD Ryzen AI Max 385 has 128GB available.
If you need more speed or context headroom, compare alternative GPUs below and check higher-tier VRAM options.