This document summarizes VPU and GPGPU technologies. It discusses that a VPU is a visual processing unit, also known as a GPU. GPUs have massively parallel architectures that allow them to perform better than CPUs for some complex computational tasks. The document then discusses GPU architecture including stream processing, graphics pipelines, shaders, and GPU clusters. It provides an example of using CUDA for GPU computing and discusses how GPUs are used for general purpose computing through frameworks like CUDA.