NVIDIA RTX Spark: local AI agents arrive on PCs with 128GB memory

NVIDIA confirmed at IFA 2026 that RTX Spark Windows PCs ship in October, with Lenovo and Acer showing systems featuring a 20-core Grace CPU, a Blackwell-class GPU, up to 128GB of unified memory and up to 1 Petaflop of FP4 performance. The platform targets local AI agent workloads, and the Personal AI Router (PAIR) can spread inference across multiple RTX PCs on one network.

• 20-core Grace CPU paired with a Blackwell-class RTX GPU
• Up to 128GB unified memory and 1 Petaflop FP4
• PAIR distributes inference across multiple RTX PCs on a LAN
• Pricing and exact Lenovo and Acer configs not announced