Important Parts in a Gaming Computer

Last Updated on March 22, 2021 | Written by Daniel Peters

New to the world of PC gaming?

It’s quite normal to not know the difference between a good gaming computer and a bad gaming computer.

If you are thinking about buying a new computer, this can mean that you do not know whether or not it is good enough to get the best experience possible.

It leaves us with the question of which parts of a gaming PC are the most important?

Rest assured, this article will teach you how each part of your computer works together to give you the best possible gaming setup. Once you know how each part works, you’ll have a much better idea of whether or not your computer can run your favorite games.

Why It’s Worth Understanding How Your Computer Hardware Works

It’s a good idea to learn what each of the hardware components in your computer do, and how they interact with each other.

If you don’t understand how your computer works, you may run into problems such as poor frames rates, latency issues, and lag when playing computer games.

Having knowledge of what each of the hardware components in your computer does will enable you to identify the cause of the problems.

If you have a computer that is not working as expected, you may need to replace just a few components to fix the problem rather than buying a brand new one.

If you upgrade just a few components on your computer, it can make it run more smoothly.

Let’s jump straight into it – here is Techriations’ list of the parts of your computer, what they do, and why they are important.


Similar to the graphics card, the computer’s processor is just as important. Your computer will handle most of the work when you’re playing a video game, so make sure that it has a powerful processor. Your computer will handle all the calculations from the CPU to the graphics card for you, to output incredible visuals once rendered.


The computer’s RAM (Random Access Memory) stores temporary data that is frequently accessed by the computer’s processor. The computer’s RAM acts as a cache, storing frequently accessed data in a more organized fashion. RAM is much faster than hard disk storage because it can be accessed instantly.

Graphics Card

Your graphics card is probably the single most important piece of hardware you could add to your computer. Your computer will run much more smoothly if you upgrade to a powerful graphics card. If you upgrade to a high-end graphics card, your computer will run more smoothly, and you won’t have to


Another important part of the set up is the motherboard. This component physically connects the main components together. This connection can have a big impact on the performance of your computer. For example, many motherboards use a serial data transmission.

Good motherboards are designed to handle a lot of data so that it doesn’t slow down the computer’s performance.
If you’re a serious gamer, you’ll need to make sure your motherboard supports overclocking when purchasing a PC or motherboard to open up that door for you if the future.


Your hard drive or solid-state drive (SSD) is where most of your saved games are stored. Your computer stores your saved games in the hard drive. Your computer uses the hard drive for storing your saved games. This can slow things down if your hard drive is slow as your CPU needs to access this data to output to the screen. As the CPU can not store this data itself, it has to have efficient means of accessing it. If your storage drive isn’t lightning fast, it will have a knock on effect on your other components.

Power Supply

Your computer will run much more smoothly if you use a reliable, high-quality power supply. A bad power supply can make your system unstable and difficult to use. A weak or failing power supply can be the cause of many computer problems. The moral of the story is that you should always make sure that your power supply can handle the amount of power your computer will draw.

Optical Drive

Some games will require you to use a CD-ROM drive to play the game. This can be quite slow for the computer to access, so if you have a fast optical drive, your gameplay will probably be smoother.

Some people do not like the idea of having to carry around a CD-ROM or DVD-ROM in order to play their games, so optical drives are now becoming more and more popular. Games can now be played on a computer without having to have a disc due to the fact that games these days back be downloaded straight to your hard drive.


A computer case needs to be well ventilated in order to avoid overheating issues. If you’re playing a lot of video games, you’ll need to ensure that your system is well ventilated to avoid overheating issues. If there is a component is running too hot, they could decrease in performance output in the attempt to stop further overheating. By having a poor ventilation system, your computer could be running at a lower speed.

Display Monitor

It’s a little-known fact that your display monitor can actually have a big effect on how well your computer can handle games. One of the main factors which can impact the amount of demand put on your graphics card is your screen’s resolution (number of display pixels – e.g. 1920 x 1080).

If you are trying to play games with the highest resolution set on your screen, then this can sometimes overload your graphics card.

The good news though, is that your display monitor resolution can be adjusted.

All monitors will have a maximum resolution, which is the biggest resolution you can set, however, depending on the size of your screen you can sometimes choose a smaller resolution with no noticeable visual difference – but this change can make a massive difference to your graphics card performance.

What are the most important parts on gaming computers?

All of the hardware components above are essential, but some are more important than others.

For a gaming build, what is the order of importance and what should you be looking at upgrading or focusing on first?

Well, our breakdown is as follows:

Graphics card – the main focus when it comes down to pro gaming computers

CPU – it’s responsible for most of your computer’s workload. Getting one that performs will stop clogging up your other components

RAM – Check out at least 8GB worth of RAM for gaming

Storage, Motherboard, Power Supply, Cooling – these items are secondary to your important components above, but I feel they all deserve 3rd position as they are just as important as eachother.

Monitor, Optical Drive – this isn’t a major factor to a high performing set up, but if you don’t have a good screen then there is little relevance in optimising for amazing graphics. 

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Representing the most up-to-date tech, Daniel Peters is one of our tech reviewers and writers right here on Techriation. Born and raised on the south side of the San Francisco Bay Area, Dan has been involved in tech start-ups for the last 9 years. With the experience built through studying the latest worldwide trends, Dan's talent covers all things to do with gadgets and computing offering some of the most in-depth insights in the technology community.