The skeleton and brain of a computer is the motherboard and CPU. A CPU is the Central Processing Unit. This is most like our brain.
The mother or main board is like out nervous system or skeleton. It is the large circuit board that every part of the computer plugs into, including the CPU. It holds everything together.
For detailed information on CPU’s see the video: (jump to TM 6:07 to skip the explanations and see the benchmarks.
There is a lot of jargon in the video, I’ll get the important stuff explained.
First the TL:DR, the video shows there is very little difference between the various CPU’s. When it comes to frames per second. The three tested CPU’s are about equal. However, if you are going to use Intel’s HD Graphics without a dedicated graphics card, he shows there is a difference and the 6th generation CPU wins. So, laptop people… go for 6th gen CPU or a dedicated video chip.
