NVIDIA, MediaTek and Microsoft unveil RTX Spark Superchip for AI‑first PCs

NVIDIA and MediaTek announced the RTX Spark Superchip, an ARM‑based processor that integrates NVIDIA’s Blackwell GPU with 6,144 CUDA cores and up to 128 GB of unified LPDDR5x memory. The chip is designed to deliver petaflop‑level AI performance while keeping power consumption moderate, targeting professional and creative workloads on Windows‑on‑ARM devices.

Microsoft partnered on the platform, dropping the previous 40 TOPS NPU threshold for local AI features in Windows 11. The RTX Spark will power upcoming PCs such as Microsoft’s Surface Laptop Ultra and HP’s OmniBook series, with the first devices expected in autumn 2026. The announcement follows earlier Copilot+ PC efforts, which saw modest market uptake, and signals a shift toward GPU‑centered AI inference on desktop PCs.

The collaboration positions the RTX Spark as a competitor to traditional x86 workstations and Apple’s silicon strategy, promising tighter CPU‑GPU coupling and reduced latency for tasks like real‑time upscaling, inference, and large‑dataset preprocessing.