Nvidia Launches RTX Spark Chip for AI-Powered PCs

Nvidia has unveiled the RTX Spark, a system-on-chip for Windows laptops and compact desktops, built on its Blackwell GPU architecture with a 20-core Grace-based CPU. The chip delivers up to 1 petaflop of FP4 performance, 128GB unified memory, and can run on-device AI models with up to 120 billion parameters. The processor targets AI agents, creative applications, and gaming, with Adobe and Microsoft among key partners. Microsoft will launch the Surface Laptop Ultra featuring RTX Spark, while new Windows security features will govern AI agent behavior. Jensen Huang called it the first reinvented PC platform in 40 years.