GPU comparison
MacBook Air M4 (24GB) vs NVIDIA RTX 4070 (12GB) 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.
| MacBook Air M4 (24GB) | NVIDIA RTX 4070 (12GB) | |
|---|---|---|
| Memory | 24.0 GB | 12.0 GB |
| Bandwidth | 120 GB/s | 504 GB/s |
| Price (approx) | $1,399 | $549 |
| LLMs it runs | 29 of 48 | 19 of 48 |
| Best model it runs | Gemma 4 31B · 5–7 tok/s | Devstral Small 2 24B · 35–53 tok/s |
The MacBook Air M4 (24GB) runs 10 more of the tracked models (29 vs 19), thanks to its 24.0 GB of memory. The NVIDIA RTX 4070 (12GB) has more memory bandwidth (504 GB/s), so it generates tokens faster at the same model and quant.