GPU comparison
NVIDIA RTX 4070 (12GB) vs AMD RX 7900 XTX (24GB) for local LLMs
How the two stack up for running open-source LLMs locally — memory, bandwidth, price, and how many of the 48 tracked models each one can run.
| NVIDIA RTX 4070 (12GB) | AMD RX 7900 XTX (24GB) | |
|---|---|---|
| Memory | 12.0 GB | 24.0 GB |
| Bandwidth | 504 GB/s | 960 GB/s |
| Price (approx) | $549 | $949 |
| LLMs it runs | 19 of 48 | 34 of 48 |
| Best model it runs | Devstral Small 2 24B · 35–53 tok/s | Gemma 4 31B · 40–60 tok/s |
The AMD RX 7900 XTX (24GB) runs 15 more of the tracked models (34 vs 19), thanks to its 24.0 GB of memory. The AMD RX 7900 XTX (24GB) has more memory bandwidth (960 GB/s), so it generates tokens faster at the same model and quant.