Your Graphics Processing Unit (GPU), or Graphics Card is a specialized processor dedicated to enhancing visual display functions on your PC. Generally speaking, it's used for processes common in modern games, such as:
However, GPUs have a wide variety of uses outside of running and developing games. In case you're interested, here's how Salad uses your GPU to make you money. Salad has a limited list of what GPUs can run on our system. Here's how to find yours.
First, go to your windows home button and search for "Device Manager" - here's a link on how to find it, in case it's being sneaky. Once in device manager, open the "Display Adapters" tab and click on it.
Of course, it may look a bit different if you're on a different OS of Windows. Once you find the model number of your GPU you can look it up online. Typically the manufacturer has a page listing the technical specs of their specific hardware, and on this page you'll find your card's VRAM.