RTX Spark tested: strong GPU, just okay CPU

Nvidia re-entered Windows silicon with RTX Spark (MediaTek N1X): 18/20 CPU cores, 5,120 or 6,144 GPU cores, up to 128GB unified memory and up to 300 GB/s bandwidth. In Cinebench 2026 the 20-core chip scored 558 single-core and 6,885 multi-core, with the GPU clearly outperforming the CPU.

• RTX Spark: 18 or 20 Cortex-X925/A725 cores, clocks up to 4.1 GHz
• Blackwell RTX GPU: 5,120 or 6,144 CUDA cores, LPDDR5X up to 300 GB/s
• Cinebench 2026: 558 single-core and 6,885 multi-core on the 20-core part
• TDP ranges from 45–80W to 45–140W depending on configuration