Microsoft introduces the Surface Laptop Ultra, featuring an Arm-based Nvidia RTX Spark chip, marking a bold return to Arm-powered Windows portables after past challenges.

The new line of Windows laptops and desktops will be the first ever to run solely on an Nvidia-made chip, the RTX Spark, as the AI giant looks to take on rivals Intel and AMD.

Nvidia CEO Jensen Huang unveiled a long-awaited Arm-based PC chip, breaking into PCs for the first time on new laptops by Dell, Microsoft, HP, ASUS and others.