A graphics processing unit (GPU) is an important part of your computer as it handles 2D/3D graphics rendering. If you did not have any GPU in your computer then you would get no display to your monitor (or even anywhere to plug it in). It’s not only used in computers but also in mobile phones, game consoles and more.
In today’s computers there are two main varieties of GPU which is an Integrated Graphics Processor (IGP) and a discrete graphics card.
An IGP is often a low powered solution and is more common than graphics cards in computers, especially laptops. An IGP is located within the CPU or motherboard which makes them attractive for small computers. Since they generate less heat and use less power than most dedicated graphics cards they are ideal to use in a laptop because of its compact design. Desktop computers also use this technology as it’s cheaper for computer manufacturers to implant.
While an IGP does have some perks they do have some negatives to. They are often weaker than dedicated graphics cards since they are designed to use little power and generate little heat. Most integrated solutions will work fine in 2D environments however, some may struggle when playing 3D games. If you wanted to play games on your computer it’s generally better to get a dedicated graphics card for increased performance. A graphics card also has dedicated RAM which, in most cases, is faster than system RAM. This will allow the graphics card to access temporary data quicker which is very important in demanding 3D games. This also allows more system RAM to be free which can then be used by software.