GPU comparison
MacBook Air M4 (24GB) vs AMD RX 9070 XT (16GB) for local LLMs
How the two stack up for running open-source LLMs locally — memory, bandwidth, price, and how many of the 64 tracked models each one can run.
| MacBook Air M4 (24GB) | AMD RX 9070 XT (16GB) | |
|---|---|---|
| Memory | 24.0 GB | 16.0 GB |
| Bandwidth | 120 GB/s | 645 GB/s |
| Price (approx) | $1,399 | $699 |
| LLMs it runs | 45 of 64 | 45 of 64 |
| Best model it runs | Qwen3.8 27B · 7–10 tok/s | Qwen3.8 27B · 38–58 tok/s |
Both run the same number of models, but the MacBook Air M4 (24GB) has more memory (24.0 GB), so it can hold larger models at higher quality. The AMD RX 9070 XT (16GB) has more memory bandwidth (645 GB/s), so it generates tokens faster at the same model and quant.