GPU comparison
NVIDIA DGX Spark (GB10, 128GB) 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 64 tracked models each one can run.
| NVIDIA DGX Spark (GB10, 128GB) | AMD RX 7900 XTX (24GB) | |
|---|---|---|
| Memory | 128.0 GB | 24.0 GB |
| Bandwidth | 273 GB/s | 960 GB/s |
| Price (approx) | $4,699 | $949 |
| LLMs it runs | 57 of 64 | 47 of 64 |
| Best model it runs | Qwen3.8 Flash Next (MoE) · 47–70 tok/s | Qwen3.8 27B · 36–54 tok/s |
The NVIDIA DGX Spark (GB10, 128GB) runs 10 more of the tracked models (57 vs 47), thanks to its 128.0 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.