As such, if there are air pockets between your cooler and your CPU or GPU, the air will work a bit like a winter jacket, keeping the heat in the CPU. This is where thermal paste comes in! Because thermal paste starts as a liquid, it flows into all of the microscopic abrasions and cavities that might exist between your devices and their cooling components.Īs we mentioned earlier, air acts as a thermal insulator. There will always be small areas of air caught between your CPU and its accompanying cooler, no matter how well you think they’ve been pressed together. ![]() However, while your CPU and your CPU cooler might look like they’re flush against each other, on a microscopic level, this isn’t actually the case. When you put two pieces of metal next to each other, theoretically, heat should be able to transfer between them effortlessly. However, you will often be purchasing your CPU cooler independently of the CPU itself, so you’ll always want to apply thermal paste between the two before you assemble everything. While it’s possible to replace the thermal paste in a GPU, it’s a bit more complicated, and you run the risk of damaging the unit if you don’t know how to disassemble it. However, a GPU will often come preassembled with thermal paste, onboard fans and fins (or pipes) already put together. In a computer, it’s usually the CPU and the GPU that need coolers to operate correctly. It’s more expensive, though, and it can be challenging to set up. Other setups will use liquid cooling, which is a superior method of cooling your PC. Many computers will have fans that help to dissipate heat and are often paired with fins that offer more surface area to release the heat into the air. What do we mean by thermally conductive? Well, this means that the thermal paste will heat up quickly, transferring the heat between the processor and its heat dissipators, whatever they might be. Believe it or not, air acts as a thermal insulator, so even having a tiny air gap between the internals in your PC can cause heat build-up. ![]() Thermal paste (or thermal grease) is a thermally conductive compound that helps to dissipate the heat generated by your computer’s CPU or GPU. Gigabyte GeForce GTX 1660 Ti Windforce OC.We tested the various thermal pastes on our $800 build PC, which features the following parts: For most users, the deciding factors will be a combination of real-world performance and price. While thermal paste conductivity numbers are important, the raw performance numbers are what you’ll need to look at to decide which thermal paste is best for you. Keep reading to find out what the best thermal paste brand currently is. So, if you’re looking for what type of thermal paste best fits your needs, this buying guide is for you. ![]() ![]() There are many different types and brands of thermal paste, and to the uneducated consumer, they might all seem the same.īut actually, each one has valuable strengths and weaknesses that you’ll want to consider before buying or using one of them. However, your quest doesn’t stop there – you’ll have to decide which thermal paste you want to apply first. If you don’t, your devices could eventually start to overheat with time. Your CPU most likely won’t come with any thermal paste at all! If your item has already been sitting on a shelf for a few years, chances are the thermal paste is already pretty worn out!Īs such, you’ll want to replace or apply new thermal paste on most devices you buy, and you should replace it every few years on computers that you own, too. While your GPU will come with thermal paste already applied, this will only last for so long. Having an effective thermal paste is an essential yet underrated aspect of building a good gaming PC.
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