Can the NVIDIA RTX 4080 run Qwen3 8B?
Yes
QuantQ8_0Near-lossless
Memory10.5 GBof 16 GB
Speed~49tokens/s
Yes. The NVIDIA RTX 4080 can run Qwen3 8B fully in VRAM at Q8_0 (near-lossless), using about 10.5 GB of the 16 GB available, at roughly 49 tokens/second.
Try other context lengths in the calculator →Memory needed by quantization
At 8,192 tokens of context.
| Quant | Quality | Memory | Fits? | Speed |
|---|---|---|---|---|
| FP16 | Full quality | 18.2 GB | Too big | — |
| Q8_0 | Near-lossless | 10.5 GB | Fits | ~49 tok/s |
| Q6_K | Excellent | 8.5 GB | Fits | ~64 tok/s |
| Q5_K_M | Very good | 7.6 GB | Fits | ~74 tok/s |
| Q4_K_M | Good, most popular | 6.8 GB | Fits | ~87 tok/s |
| Q3_K_M | Noticeably degraded | 5.8 GB | Fits | ~107 tok/s |
| Q2_K | Heavily degraded | 4.9 GB | Fits | ~140 tok/s |
How to run Qwen3 8B on the NVIDIA RTX 4080
With Ollama installed, one command downloads and starts it:
ollama run qwen3:8bOllama's default download is Q4_K_M (about 6.8 GB here). You have room for Q8_0, which is near-lossless: pick that GGUF in LM Studio or from Hugging Face.
GPUs that run Qwen3 8B comfortably
- NVIDIA RTX 4060 (8 GB)
- NVIDIA RTX 3070 (8 GB)
- NVIDIA RTX 3080 10GB
- NVIDIA RTX 3060 12GB
- NVIDIA RTX 4070 (12 GB)
Models that run well on the NVIDIA RTX 4080
Run it in the cloud
Don't want to buy hardware? Run Qwen3 8B on a rented GPU today.
Rent a cloud GPU by the hour. No upfront cost, cancel any time.