One of the ways that you could go about improving your understanding of CPU stuff would be by referring to technological forums online where experts and newbies can interact and discuss things accordingly. If you are looking for information about CPU stuff then you will have to look for websites that specialize in CPU and computer systems as not every website that deals in computers would have as much details about CPU stuff as you may have appreciated finding.
This is the reason that you will find it necessary to spend some time looking for different websites and comparing information that you are provided so you can see which one would have answers to the kind of questions that you may have in your mind. So, the best thing for you to do is check with an expert that you may know on the right website that you could be referring to for information on CPU stuff as well as trying to look for discussion forums where you could ask specific questions as you will receive answers from others depending upon how busy the forum may be.
However, an important thing for you to consider would be to not simply trust answers that you are provided by just about any member of the forum, instead, you will want to get answers that you can trust from established members.