Ventus is a high-performance open-source GPGPU based on RISC-V and its vector Extension to deliver a scalable, fully open-source GPU solution. By Professor Hu He from Tsinghua University, this project represents a groundbreaking initiative in creating accessible, transparent, and customizable GPU computing architectures. The presentation covers the technical foundations of the Ventus architecture, its RISC-V vector extension implementation, performance characteristics, and the broader implications for democratizing GPU computing through open-source hardware design.