Head to head

NVIDIA DGX Spark (GB10) vs Radeon RX 7900 XTX

The NVIDIA DGX Spark (GB10) holds more — 128 GB against 24 GB — which decides what you can load at all. The Radeon RX 7900 XTX has more bandwidth at 960 GB/s, which decides how fast tokens come out once a model fits.

Model (Q4_K_M, 8K)NVIDIA DGX Spark (GB10)tok/sRadeon RX 7900 XTXtok/s
Llama 3.1 8B Runs comfortably 35.1 Runs comfortably 105
Llama 3.1 70B Runs comfortably 4.37 Won't fit 1.52
Llama 3.2 3B Runs comfortably 78.1 Runs comfortably 230
Llama 3.2 1B Runs comfortably 209 Runs comfortably 609
Llama 4 Scout 109B-A17B Runs comfortably 14.8 Won't fit 4.91
Qwen3 8B Runs comfortably 33.9 Runs comfortably 101
Qwen3 14B Runs comfortably 19.8 Runs comfortably 59.3
Qwen3 32B Runs comfortably 9.17 Fits, but tight 27.6
Qwen3 4B Runs comfortably 62.2 Runs comfortably 183
Qwen3 30B-A3B Runs comfortably 53.5 Runs comfortably 112
Qwen3 235B-A22B Won't fit 6.20 Won't fit 3.07
Qwen2.5-Coder 32B Runs comfortably 9.17 Fits, but tight 27.6
Qwen2.5 7B Runs comfortably 38.9 Runs comfortably 116
Qwen2.5 72B Runs comfortably 4.24 Won't fit 1.44
Gemma 3 4B Runs comfortably 66.4 Runs comfortably 196
Gemma 3 12B Runs comfortably 23.8 Runs comfortably 71.1

Specifications

NVIDIA DGX Spark (GB10)Radeon RX 7900 XTX
Memory128 GB24 GB
Bandwidth273 GB/s960 GB/s
FP16 compute125 TFLOPS123 TFLOPS
Launch price$3,999$999
ArchitectureBlackwellRDNA3