NVIDIA's RTX Spark N1X pairs 128GB unified memory with Arm-on-Windows laptops

NVIDIA's RTX Spark N1X, launching October 2026 in laptops from Asus, Dell, HP, Lenovo, Microsoft, and MSI, combines a 6144-core Blackwell GPU with a 20-core Grace CPU and up to 128GB of unified memory shared between both. No x86 laptop or Apple M-series chip matches that unified capacity at this tier — a key advantage for running large language models locally, where memory often matters more than raw compute.