Top-quality RAM is crucial in any high-end PC. Usually, the idea is the more RAM you have the better, but there are more factors involved. Here's a quick guide on how to pick the perfect RAM for your PC.
Capacity
For your PC build, you want to ensure that you have enough RAM installed to run multiple apps, such as streaming, video editing, gaming, etc.
Video games or apps with high system requirements usually require a good amount of RAM.
Your motherboard documentation will tell you exactly how much RAM it can handle; once you find the maximum amount, aim for the higher spec.
16GB is a great starting point, but if you can install 32GB of RAM or more that's even better.
The RAM kit also needs to be compatible with your motherboard. Quad-channel is the best option for extreme performance.
Type
DDR3 RAM is out of date and obsolete. Don't buy it.
DDR4 is the most common for desktops and older systems. DDR5 RAM is the most updated standard.
It has faster transfer speeds and great capacity if you really want to maximize your system. Check your motherboard documentation to see if it's compatible with DDR5.
The form factor of RAM is important. UDIMM is the most common form factor for desktop computers. SODIMM is memory used for laptops and small systems.
Be sure you check you're buying the correct size.
Speed
For DDR4 RAM, speeds ranging from 2400MHz to 3200MHz are great for balanced performance at an affordable price.
DDR5 memory speeds range from 4800MHz to 6400MHz -- much faster, but also more expensive.
You also want to look at lower CAS Latency (CAS). This tells you the total number of cycles it takes for RAM to send data.
The lower the number, the better. For example, buying DDR5 memory with a CAS latency of 14 is a solid investment.
Wrapping Up
If possible, max your motherboard with the most amount of RAM possible, as long as it's compatible.
RAM has varying types, with DDR5 being the current standard. If you're buying a new PC, only use desktop RAM. SODIMM memory is for laptops.
Memory also varies with the type, with DDR5 being the fastest. But look at CAS latency too. The lower the number, the better.
Here are some common brands:
