Key Parts in a PC | A Guide to Computer Parts

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Building your gaming computer is no less than crafting your competitive edge on your rivals. If you choose every part carefully, considering the gaming requirements, you can build a much better gaming PC than prebuilt ones available in the market. Because the prebuilt PCs in the market are available with standard specifications, you can accumulate much better specs at a much lower budget by choosing all the computer parts by yourself.

Are you confused? How can you do that when you don’t have complete knowledge of the computer parts? Do you remember the issues you faced while gaming on your previous computer or things you wish could be better? Like resolution, smooth screen performance, no hanging, no stuttering, no screen crashing, just fast response and excellent gameplay. All these qualities depend on your hardware components. In this blog we will discuss all those components and their required specs for the best performance. Let’s break down the parts of a computer, from PC builds to PC peripherals. Whether you are building a PC from scratch or making some major hardware upgrades on your existing PC. This blog is everything you need to build your dream gaming PC.

Key Computer Parts for Build a Perfect Gaming PC in 2025

Building a PC on your own and choosing each computer part by yourself is the only way to get a computer with all your personal preferences. You can pick your preferred computer parts with a PC Parts Picker and build yourself a dream PC with custom specifications. With Direct Macro, an authentic PC parts store, you can separately buy all the parts of a PC with a 10 percent discount. 

Central Processing Unit (CPU)

The Central Processing Unit is the main processor in a PC, also known as the “brain” of the computer. It allows your system to take and execute all the commands given by the user. The processing unit supports the operating system that runs all the software and applications on your PC. Therefore, if you are planning to run specific high-end software or applications, which are a must if you are aiming for a smooth gaming experience, you need to make sure that your main processor is capable of running it.

The two most popular brands for central processing units are Intel and AMD. When you choose a processor for your PC, check the core processor technology, architecture, number of cores and threads, memory speed, overclocking speed, and architecture. Another thing you should be careful about is socket support. If your CPU supports the AM5 socket, it means that it will be perfectly compatible with DDR5 and PCIe 5.0 technologies. If you are aiming for the best gaming experience, then make sure you have a CPU with a high max turbo frequency. High turbo frequency improves single-threaded performance, which, in turn, increases the number of frames per second and offers a perfect screen play in the most demanding games. More cores and threads denote that a processor is capable of handling multiple programs and applications at a time. 

Graphics Processing Unit (GPU)

One of the most crucial computer parts in modern PC setups is its graphic processing unit. A graphic processor is used to accelerate the graphic tasks like, 2D and 3D rendering of images, videos, animations in a computer system. If you are aiming for 4K or 8K resolution, then high-end graphics can fulfill your purpose. The two most competing GPU manufacturing giants are Nvidia and AMD. Nvidia 40 series is one of the high-end GPU models that are going to support your 4K and 8K resolution with higher frame rates and advanced ray tracing technology. However, Nvidia recently released its RTX 5000 series in January 2025, in which it introduced its unprecedented Blackwell GPU architecture that is going to bring a revolution to the gaming industry. On the other hand, AMD’s GPU series name starting from RX. The RX 6000 and RX 7000 are the two most advanced graphic processing unit’ series from AMD.

Every GPU has a VRAM. Video random access memory is dedicated memory for handling high-end gaming graphics. A RAM of 8GB and 12GB is sufficient for high-end gaming applications. If you are planning to run data management and rendering workloads, then you may go for 24GB VRAM. Also, look for GDDR6 and GDDR7 memory for better performance. In addition to that, check for the clock speed and overclocking speed, cooling solution, and thermal power consumption. Check if the GPU is compatible with the PCIe 4.0 or 5.0 slot interface.  Always remember, if you are going for a high-end GPU, you must also get a compatible monitor and CPU with it. 

Motherboard 

A motherboard is the most important part of a computer that ensures the working of all other hardware components. Almost all of your PC components directly or indirectly connect to your motherboard. The motherboard comes with an I/O shield and ATX, micro ATX, and Mini ATX form factors. When buying a motherboard, look for the chipset it is compatible with; the chipset determines what features a motherboard supports, for instance, compatibility with CPU, GPU, and other hardware components. Make sure your motherboard supports RAMs with DDR4 and DDR5 technology. If your motherboard has PCIe 4.0/5.0 x16 slots, it denotes its compatibility with high-end GPUs. 

(RAM) Random Access Memory 

Random access memory is an indispensable component of computer parts. Without RAM, your computer cannot run the operating system. A Random-access memory is a temporary memory support that stores and processes data temporarily whenever the system performs any action. It means when you open a program, software, or application, it will store the data temporarily while you are using it, and data will be erased as you close the application. Similarly, it will begin to store temporary data for other actions you perform on your pc.

Random access memory supports the Central processing unit in executing all the operating system’s commands. A random-access memory of 8 GB is required for entry-level gaming experience, and 12 GB RAM can help with mid-level gameplays and some high-end games. However, for 3D rendering and Data Engineering, more than 12 GB RAM is the perfect choice. The most advanced RAM technology right now is DDR5, while many hardware manufacturers are working on introducing DDR6 in upcoming rams. 

Storage (Solid State Drive, Hard Disk Drive): 

For permanent storage of data, you need a solid-state drive or hard disk drive in your PC. These two permanent storage devices are a must for gaming applications and advanced software to download and fully set up files in your operating system. An HDD of 4Terabytes is best for creating data backups. On the other hand, SSDs are better for operating systems, games, and more frequently accessed applications. An SSD of 256 to 512GB is perfect for high-end gaming PCs. It’s the ideal choice for modern games where load times are crucial.

Power Supply Unit (PSU)

Your PC cannot work if it doesn’t have a sufficient power supply. Each of your PC components, including GPU, CPU, Processor, and others, requires power to run correctly. When building a PC from the start, make sure to get a power supply unit that can fully support all the parts of a computer. For entry-level gaming, 450-650Watts. In mid-range gaming, you need approx. 650 watts; for high-end gaming, you need 850 watts. Modern processors and GPUs come with energy-efficient technology that takes less power and offers better performance.

Refurbished Computer Parts is an Affordable Choice 

New computer parts can be costly and may not be affordable for many PC users. The best option for affordable and reliable computer parts is refurbished products. Refurbished products are used computer parts that undergo quality assurance to clear defects and replace faulty components. Many refurbished products work even better than new ones if you improve their capacity. 

In refurbished pc parts, there are also end-of-life products that can be available at salvage value. EOL means that these computer parts have finished their lifecycle. Most of the computer parts work perfectly fine, even at the end of the life cycle. All these parts undergo a refurbished process that turns them into mint condition. These computer parts can be available at the lowest price in the market.

Conclusion

Although brand-new GPUs can be very expensive for mainstream gamers, you can fulfill your system’s requirements with mint-conditioned computer parts. Direct Macro is one of the most reliable pc parts stores for both New and refurbished pc parts. It offers free delivery of up to 10 lbs in the United States and Canada, with return and exchange within 30 days.

FAQ’s

Do computer parts come with warranty?

Yes, many well-known brands offer a warranty with the computer parts. 

What part of the computer loads games on browser? 

Your central processing unit, along with random-access memory, is responsible for loading games on the browser. Integrated graphics in the CPU would be enough to handle browser games. For heavy game files, you need a GPU. 

Does RAM make games load faster?

Yes, more RAM allows faster data processing, which results in faster gaming loading.

What PC part affects load times?

Your PC’s graphic setting, RAM, graphic processing units, central processing units, and internet connections affect the load times on your PC.