Leaked Microsoft Surface Laptop Ultra Specs Reveal NVIDIA RTX Spark Superchip
Leaked specifications reveal that Microsoft's Surface Laptop Ultra will feature NVIDIA's RTX Spark Superchip, combining up to a 20-core Grace CPU and Blackwell GPU with up to 128GB of unified memory. The flagship laptop delivers up to 1 PetaFLOP of AI compute, enabling local execution of AI models with over 120 billion parameters. By enabling developers and creators to run massive frontier AI models locally, this laptop significantly reduces reliance on cloud compute for AI agent workflows and heavy creative applications like Premiere Pro and Blender. It marks a major milestone in bringing workstation-class AI hardware into a portable Windows PC form factor. The 15-inch device weighs under 4.5 pounds, features a PixelSense Ultra touchscreen with 2000 nits peak HDR brightness, and maintains 99.6% performance consistency between battery and AC power. Additionally, Windows 11 will introduce a unified memory control tool that lets users dynamically reallocate RAM between the CPU and GPU.
## BACKGROUND
The NVIDIA RTX Spark Superchip integrates Arm-based NVIDIA Grace CPU cores with Blackwell graphics architecture and high-bandwidth unified memory on a single platform. Unified memory allows the CPU and GPU to share the same high-speed memory pool without transferring data over a PCIe bus, making it ideal for running local large language models that demand substantial VRAM capacity.