20 GB VRAM is a unique sweet spot — fits all 14B models with a larger context than 16GB cards. Great for AMD users who want more VRAM than the 7800 XT.
| VRAM | 20 GB |
| Memory Bandwidth | 800 GB/s |
| TDP | 315 W |
| Architecture | RDNA 3 Navi 31 |
| Release Year | 2022 |
| MSRP at Launch | $899 |
| Inference Speed (Llama 3.1 8B Q4_K_M) | ~72 tokens/sec |
All models below run comfortably in 20 GB VRAM with Q4_K_M quantization.
| Llama 3.1 Family | 6 GB VRAM · Q4_K_M · ollama run llama3.1 |
| Llama 3.3 | 43 GB VRAM (smallest variant — needs more VRAM or a lower quant) · Q2_K_XS (Tight) · ollama run llama3.3 |
| DeepSeek R1 | 9 GB VRAM · Q4_K_M · ollama run deepseek-r1:14b |
| Qwen 3 | 20 GB VRAM · Q4_K_M · ollama run qwen3:32b |
| Gemma 3 | 17 GB VRAM · Q4_K_M · ollama run gemma3:27b |
| Mistral Small 3.1 | 14 GB VRAM · Q4_K_M · ollama run mistral-small3.1 |
| Phi-4 Family | 9 GB VRAM · Q4_K_M · ollama run phi4 |
Install Ollama then run the recommended model for this GPU:
ollama run qwen3:14b
Yes — the AMD Radeon RX 7900 XT has 20 GB VRAM and runs 20 GB VRAM is a unique sweet spot — fits all 14B models with a larger context than 16GB cards. Great for AMD users who w
The AMD Radeon RX 7900 XT runs Llama 3.1 8B at ~72 tokens/sec with Q4_K_M quantization.
With 20 GB you can run: Llama 3.1 Family, Llama 3.3, DeepSeek R1, Qwen 3, Gemma 3. Use Ollama for the easiest setup: ollama run qwen3:14b.
← All GPU Reviews | Check Your Hardware | Full Benchmarks | Can I Run It?