The Importance of PC RAM

pc ram

The speed of a PC’s RAM determines how quickly data can flow into and out of the CPU. It also allows you to use demanding applications and open larger files.

RAM is a device’s short-term memory, reading information it might need in the future and then temporarily storing it for quick access by the CPU or other components. It remains readily available until you shut down or restart your computer, at which point it gets cleared and prepared to receive new data.


Most PC users understand that a higher processor speed, measured in megahertz or gigahertz, will result in better performance. Many may not realize that the speed of your RAM, which is usually listed in MHz or GB, can also make a difference.

When your computer runs a program, it needs to move data from long-term storage (like your hard drive or SSD) into RAM, where it can be processed quickly. If this process is slow, your system will run slowly.

The faster the RAM, the more data it can transfer to the CPU, which results in a quicker system overall. The amount of RAM needed varies greatly depending on the user and what applications they’re running, with more demanding tasks requiring more RAM.


The capacity of your computer’s RAM can have a significant impact on its performance. It allows your CPU to access data more quickly by storing it in memory rather than on the hard drive, and it determines how many programs you can run at the same time.

Typically, the amount of RAM you need depends on what type of work you do. Average desktop users can get away with 4 GB of RAM, which will handle most everyday tasks. However, if you plan on gaming or working with design software, 8 GB is more than enough.

You should also consider whether your motherboard supports dual-channel or single-channel memory. Dual-channel memory allows your CPU to use both memory channels at the same time, thereby boosting performance. Single-channel RAM, on the other hand, only gives your CPU access to one memory bus. Consequently, it is slower than dual-channel RAM. Moreover, RAM modules have different capacities, so you should always purchase them in pairs with the same capacity to enjoy maximum performance.


When building or upgrading a desktop PC, compatibility between RAM and the motherboard is vital. Whether it’s because of incompatibilities or physical constraints, a wrong combination of components can significantly affect your system performance.

The speed of your RAM is also an important factor when selecting a memory upgrade, especially for modern computer games. The CPU must retrieve data from RAM (the digital countertop) to run the program, and this is orders of magnitude faster than retrieving the same information from a hard drive or SSD.

Most pc ram manufacturers build their products to JEDEC specifications, guaranteeing compatibility across brands. However, there are some cases where different RAM modules may have slightly different speeds or timings, which can cause issues. For example, two modules of the same type with different CAS timings will not work together because the computer will default to the slower module. To avoid this, try to stick with the same brand of RAM and choose modules that have the same specs.


If you’re looking to upgrade your PC, RAM is a crucial component to consider. Although it’s not a permanent storage medium like your SSD or HDD, it is fast and convenient for running applications. However, it’s important to remember that the information stored in RAM is lost when you shut down your computer.

If you don’t have enough RAM, your computer will be slow and may even crash. More RAM will also not make games run faster if the CPU is bottlenecking them. In addition, a good amount of RAM can help you avoid slowdowns when working with large files. If you want to get the best performance out of your machine, you should spend money on both a high-speed stick of RAM and a fast processor. For example, a high-performance DDR5 stick from Corsair can give you a boost in both speed and capacity. This will allow you to run more applications and process data faster.