Understanding what each individual hardware component in your computer does will help you to work out which part (or parts) are causing the issues, and then you can look at upgrading or fixing that particular part. You don’t always need to buy an entirely new computer if your existing one isn’t running games well – sometimes just upgrading a single part can remove bottlenecks and save you cash as well.
So here we go – here’s a list of the most common parts in your computer, and what each one does when you play a computer game.
Graphics Card
Your
graphics card is arguably the most important part of a gaming computer build. Anything displayed on your computer monitor has come directly from your graphics card (or on-board graphics processor if you don’t have a dedicated graphics card). It directly handles the processing and rendering of images which are received from your central processing unit (CPU) so that they can be displayed on your screen. Many graphics cards have in-built features to handle specific graphical aspects of gameplay such as image rotation/fine textures/anti-aliasing, so that your CPU doesn’t have to handle these particular operations and is free for other processing activities.
CPU
Just as important as your graphics card in gaming is your
computer’s processor or CPU. This typically handles much of the actual gameplay when you are playing games, such as taking input instructions from your mouse and keyboard, actually running the game, loading maps and backgrounds, and processing events which occur inside the game. Once calculated, these items which have been handled by the CPU are passed on to the graphics card for final rendering/display and output to your display monitor.
Memory
Your computer’s
memory, or RAM, holds short-term information which is constantly being accessed and used by the CPU. Think of this like a temporary cache/storage spot where you would put things that need to be referred to frequently. Accessing information in RAM is a lot faster for the CPU than if it had to access the same information from say, your hard drive. It’s the equivalent of having a bar fridge right next to your couch, so you don’t have to get up to go all the way to the kitchen fridge every time you want a drink.
Stupid nikkas love to talk but won't fukking read. Go read and stop talking to me 
