NVIDIA L40S meets the minimum VRAM requirement for Q4 inference of unsloth/gpt-oss-20b-BF16. Review the quantization breakdown below to see how higher precision settings impact VRAM and throughput.
NVIDIA L40S can run unsloth/gpt-oss-20b-BF16 with Q4 quantization. At approximately 96 tokens/second, you can expect Good speed - acceptable for interactive use.
You have 38GB headroom, which is sufficient for system overhead and smooth operation.
| Quantization | VRAM needed | VRAM available | Estimated speed | Verdict |
|---|---|---|---|---|
| Q4 | 10GB | 48GB | 95.88 tok/s | ✅ Fits comfortably |
| Q8 | 20GB | 48GB | 66.07 tok/s | ✅ Fits comfortably |
| FP16 | 41GB | 48GB | 31.55 tok/s | ✅ Fits comfortably |