Cpu Gpu Bottleneck. The central processor bottleneck is more common of the two bottleneck types observed in videogames. CPU bottlenecks are probably more common in gaming PCs due to one undeniable reason - gamers will almost always make the GPU the priority so that they might skimp a bit on the CPU as a result.
Find out more about bottlenecking here. Checking and analyzing bottleneck is undoubtedly not an easy process this is where Bottleneck Calculator comes in. Sure a GPU being the bottleneck means that you need to turn settings down, but when its unplayable even at low settings. its a miserable experience.
This can be caused by a CPU or GPU bottleneck.
I know there will bottlenecks in all systems given certain circumstances are met, I just merely want a discussion.
You'll have to buy and then install CPU and GPU and then compare their. A GPU bottleneck is also always preferred over a CPU bottleneck, as that decreases chances of stuttering and microfreezes. This can affect the performance of your hardware to a great extent.