Those sites aren’t to be taken as gospel, they are there to give you a general idea, but they are grossly overestimated. With that being said, there are bottlenecks in any system. Even the highest tier gaming computers in the world have bottlenecks. The real matter is determining how bad the bottleneck is and deciding what parts to upgrade. There is always something holding back the maximum potential of any system. This is why channels such as gamers nexus, when they test a GPU, they get the highest tier CPU in order to turn the GPU into the bottleneck (in order to see what it’s absolute maximum performance is with NO other bottlenecks holding it back).

CX-5, no contest.