This page answers Unsloth Gpt Oss 20B Bf16 q8 quantization queries with explicit calculations from our model requirement dataset and compatibility speed table.
Short answer: Unsloth Gpt Oss 20B Bf16 typically needs around 20GB VRAM at Q8, and 24GB is safer for smoother usage.
Exact Q8 requirement from model requirement data.
Throughput data below uses available compatibility measurements/estimates and is sorted by tokens per second for this model.
Need general guidance? Review full methodology.
| GPU | VRAM | Quantization | Speed | Compatibility | Buy |
|---|---|---|---|---|---|
| AMD Instinct MI300X | 192GB | Q8 | 294 tok/s | View full compatibility | Buy options |
| NVIDIA H200 SXM 141GB | 141GB | Q8 | 265 tok/s | View full compatibility | Buy options |
| NVIDIA H100 SXM5 80GB | 80GB | Q8 | 191 tok/s | View full compatibility | Buy options |
| AMD Instinct MI250X | 128GB | Q8 | 184 tok/s | View full compatibility | Buy options |
| NVIDIA H100 PCIe 80GB | 80GB | Q8 | 121 tok/s | View full compatibility | Buy options |
| RTX 5090 | 32GB | Q8 | 115 tok/s | View full compatibility | Buy options |
| NVIDIA A100 80GB SXM4 | 80GB | Q8 | 112 tok/s | View full compatibility | Buy options |
| AMD Instinct MI210 | 64GB | Q8 | 92 tok/s | View full compatibility | Buy options |
| NVIDIA A100 40GB PCIe | 40GB | Q8 | 87 tok/s | View full compatibility | Buy options |
| RTX 4090 | 24GB | Q8 | 69 tok/s | View full compatibility | Buy options |
| NVIDIA RTX 6000 Ada | 48GB | Q8 | 69 tok/s | View full compatibility | Buy options |
| NVIDIA L40 | 48GB | Q8 | 64 tok/s | View full compatibility | Buy options |
Unsloth Gpt Oss 20B Bf16 at Q8 is estimated to require about 20GB VRAM minimum, with 24GB recommended for smoother operation.
Start with AMD Instinct MI300X, NVIDIA H200 SXM 141GB, NVIDIA H100 SXM5 80GB and review each compatibility page for full speed and fit details.
Q8 is a balance point between memory usage and quality. If your GPU is below 20GB, consider lower-bit quantization; if you have extra VRAM, compare Q8/FP16 options for quality-sensitive workloads.