NVIDIA RTX Spark N1X: 128GB Beats 32GB

shattered.io compares the two RTX Spark N1X configurations NVIDIA is preparing for an October launch. The higher-end version combines a 20-core Grace CPU with a Blackwell RTX GPU carrying 6,144 CUDA cores and supports between 24GB and 128GB of LPDDR5X unified memory. The lower-tier version pairs an 18-core Grace CPU with 5,120 CUDA cores and is limited to 24GB to 32GB of unified memory in laptops. Because the CPU and GPU share the same memory pool, the 128GB model is positioned for larger local-AI workloads as well as graphics and creation tasks.

The comparison is important because “RTX Spark” does not describe one uniform performance tier. The 20-core configuration can appear in laptops and small desktops, while the 18-core configuration is aimed at laptops. NVIDIA is promoting both systems for personal AI agents, gaming, and creative work, but the headline specifications are not independent performance results. Power limits, cooling, storage, battery capacity, drivers, Windows on Arm compatibility, and the amount of memory reserved for graphics will determine how each finished device performs. The reported October timing also does not establish that every OEM model will launch simultaneously.

For Canadian buyers, the 128GB-versus-32GB distinction should be treated as a configuration and price question, not simply a marketing headline. The report does not confirm Canadian prices, retailer listings, warranty terms, or local stock. Shoppers should compare the exact N1X variant, unified-memory capacity, display, storage, cooling, and measured battery and gaming performance when Lenovo, Acer, ASUS, HP, Dell, Microsoft Surface, MSI, and other partners publish Canadian configurations.