RTX Spark review: 20-core CPU and 6144-core GPU in one Nvidia SoC

Hands-on with Nvidia's RTX Spark N1X, the company's first SoC pairing a 20-core CPU with a 6144-core Blackwell GPU. It scored 2,623 single-core and 21,899 multi-core in Geekbench 7.1, beating Apple's M5 on multi-threaded performance.

• RTX Spark N1X packs a 20-core CPU and 6144-core Blackwell GPU
• Geekbench 7.1: 2,623 single-core and 21,899 multi-core
• Flux2 image generation in ComfyUI took 16.2–46.5 seconds
• Local Qwen3.8 27B agent produced a CSV report in 12 minutes