There is a subtle distinction between these terms. A motherboard contains a CPU and a graphics card refers to adding an inboard that contains the GPU.
The GOU has become the most important part of computer technology. GPUs are becoming more popular for use in creative production and Artificial Intelligence (AI).
CPU is used for delivering continuous high speed with the help of additional cores and GPUs are designed to accelerate computer graphics workload.
GPU can process many pieces of data simultaneously, making them useful for machine learning, video editing and gaming applications.
GPUs may be integrated into the Computer's CPU or offered as a discrete hardware unit.