Can the NVIDIA RTX 4060 run gpt-oss 20B?
- FP16
- Q8_0
- Q6_K
- Q5_K_M
- Q4_K_M
- Q3_K_M
- Q2_K
No. Even at Q4_K_M, gpt-oss 20B needs about 13.7 GB, but the NVIDIA RTX 4060 has 8 GB usable. You could offload some layers to system RAM, but it will be very slow.
Run it on a rented GPU
On a cloud GPU with enough memory, the same command you'd use locally works:
ollama run gpt-oss:20bAt Q4_K_M it needs about 13.7 GB, so pick a GPU with at least 16 GB.
Run it in the cloud
Too big for the NVIDIA RTX 4060? Run gpt-oss 20B on a rented GPU instead.
Rent a cloud GPU by the hour. No upfront cost, stop any time.
Memory needed by quantization
At 8,192 tokens of context. The black line marks the 8 GB the NVIDIA RTX 4060 can use.
| Quant | Quality | Memory | Fits? | Speed | |
|---|---|---|---|---|---|
| FP16 | Full quality | 42.8 GB | Too big | — | |
| Q8_0 | Near-lossless | 23.2 GB | Too big | — | |
| Q6_K | Excellent | 18.1 GB | Too big | — | |
| Q5_K_M | Very good | 15.9 GB | Too big | — | |
| Q4_K_M | Good, most popular | 13.7 GB | Too big | — | |
| Q3_K_M | Noticeably degraded | 11.2 GB | Too big | — | |
| Q2_K | Heavily degraded | 8.8 GB | Too big | — |
GPUs that run gpt-oss 20B comfortably
Models that run well on the NVIDIA RTX 4060
Frequently asked questions
Can NVIDIA RTX 4060 run gpt-oss 20B?
No. Even at Q4_K_M, gpt-oss 20B needs about 13.7 GB, but the NVIDIA RTX 4060 has 8 GB usable. You could offload some layers to system RAM, but it will be very slow.
How much VRAM does gpt-oss 20B need?
About 13.7 GB at Q4_K_M with 8,192 tokens of context, and about 42.8 GB at full FP16 precision.
How fast is gpt-oss 20B on the NVIDIA RTX 4060?
It does not fit in the NVIDIA RTX 4060's memory, so most layers would run from system RAM and generation would be very slow.