GeForce RTX 3080
NVIDIA
10GB VRAM · 760 GB/s bandwidth · 29.8 FP16 TFLOPS · 320W TDP
The GeForce RTX 3080 has 10GB of VRAM with 760 GB/s memory bandwidth and 29.8 TFLOPS FP16 compute. At Q4 quantization, it can comfortably run Gemma 3 4B (235 tok/s), Qwen 2.5 7B (124 tok/s), Llama 3.1 8B (117 tok/s). Models larger than ~17B parameters won't fit even at Q4. Electricity cost is approximately $35/month at 320W TDP.
What LLMs can you run?
| Model | Params | Q4 Weight | Fit | Decode |
|---|---|---|---|---|
| Gemma 3 4B | 4.0B | 2 GB | comfortable | 235 tok/s |
| Qwen 2.5 7B | 7.6B | 4 GB | comfortable | 124 tok/s |
| Llama 3.1 8B | 8.0B | 4 GB | comfortable | 117 tok/s |
| Mistral Small 24B | 24.0B | 12 GB | won't fit | |
| Gemma 3 27B | 27.4B | 14 GB | won't fit | |
| Qwen 2.5 Coder 32B | 32.5B | 16 GB | won't fit | |
| Llama 3.3 70B | 70.6B | 35 GB | won't fit | |
| Qwen 2.5 72B | 72.7B | 36 GB | won't fit | |
| Llama 3.1 405B | 405B | 202 GB | won't fit | |
| DeepSeek R1 671B | 671B | 336 GB | won't fit |
Similar GPUs
| GPU | VRAM | BW | TFLOPS | TDP |
|---|---|---|---|---|
| Arc B570 | 10GB | 380 GB/s | 23.0 | 150W |
| Radeon RX 6700 | 10GB | 320 GB/s | 22.6 | 175W |
| Radeon RX 6750 GRE 10 GB | 10GB | 320 GB/s | 22.6 | 170W |
| GeForce RTX 2080 Ti | 11GB | 616 GB/s | 26.9 | 250W |
| GeForce GTX 1080 Ti | 11GB | 484 GB/s | 0.2 | 250W |
Compare with another GPU
Select another GPU to compare specs and model performance side by side.