Bottlenecking in gaming PCs is when a certain part of the system, usually the slowest one – limits the capabilities of other components. In most cases, for gamers, the GPU accounts for the bottleneck as games are logically more graphic-oriented. But the situation can also arise where an advanced GPU or gaming focused on CPU can hold back performance. Replacing a bottleneck can allow enhancing the performance that a system has. It is essential to know what part of your computer is considered the bottleneck for the purpose of determining what parts to upgrade.