The low-end processor will not be able to match the speed of the GPU. For example, say you buy a super- fast graphics card and pair it with an entry-level desktop processor. The term refers to a situation that occurs when the processor in the computer isn’t powerful enough to keep up with the task demands.ĬPU bottlenecking happens when you pair a low-end CPU with high-end hardware or a device, commonly a GPU. But CPU bottleneck can happen with other tasks as well. Continue reading to learn more about the problems and find possible solutions for them: A Bottlenecked CPUīottlenecking is a term usually used with gaming. See below for a list of most common problems that lead to slow performing PCs. It’s important to identify these problems early on to restore performance back to normal. There could be many reasons why your PC is slow. A lagging computer is a painfully familiar problem for many Windows users.