An APU (Accelerated Processing Unit) is a particular type of processor that is integrated and works with your CPU to aid in processing your computer's graphics. Before we can understand what an APU is, we need to understand what a CPU and a GPU is.
What is a CPU?
A CPU (Central Processing Unit) is responsible for processing data on your computer. A computer's software sends instructions that need to be carried out (or processed) to the CPU, then the CPU executes those instructions. For a more in-depth explanation, please visit the following page here.
What is a GPU?
We also need to understand what a GPU (Graphics Processing Unit) is, as it performs a similar function to an APU. A GPU is similar to a CPU as they both process information from your applications and software on your PC. However, the GPU doesn't handle the same computational tasks that your CPU runs, as the GPU is solely intended for processing graphics-related content (the images on your screen).
A GPU is a separate component from your CPU, and it may require additional power sources and connections to function. For a more in-depth explanation, please visit the following page here.
What is an APU?
An APU (Accelerated Processing Unit) is AMD's brand name for their integrated graphics processor included in select AMD processors. Like a GPU, this processor is designed for handling graphics processing solely better than just a CPU can achieve.
An APU isn't as powerful as a dedicated graphics card but can still perform many graphical tasks such as gaming with a minor downgrade in performance.
Why do I want an APU?
An APU has many advantages over the more traditional dedicated graphics card. With an APU, you don't need a dedicated graphics card in your system, as an APU requires less power and costs less than owning both a CPU and GPU. They are also more readily available, as GPU manufacturers cannot meet the demand of consumers, stripping retailers of supply.
An APU also has the bonus of being compatible with dedicated graphics cards, allowing you to consider later upgrading your GPU when you can get ahold of a GPU.