GPU comparison
MacBook Air M4 (24GB) vs NVIDIA DGX Spark (GB10, 128GB) 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 DGX Spark (GB10, 128GB) | |
|---|---|---|
| Memory | 24.0 GB | 128.0 GB |
| Bandwidth | 120 GB/s | 273 GB/s |
| Price (approx) | $1,399 | $4,699 |
| LLMs it runs | 29 of 48 | 41 of 48 |
| Best model it runs | Gemma 4 31B · 5–7 tok/s | Gemma 4 31B · 11–16 tok/s |
The NVIDIA DGX Spark (GB10, 128GB) runs 12 more of the tracked models (41 vs 29), thanks to its 128.0 GB of memory. The NVIDIA DGX Spark (GB10, 128GB) has more memory bandwidth (273 GB/s), so it generates tokens faster at the same model and quant.