Having worked many years as a Tech Writer, I would think AnandTech, after 20 years in business, would have found a power engineer consultant they use for an analysis of the types of configurations on that list. I mena they must have someone they use for power supply reviews. A functional block diagram of each type, supported by a paragraph or two of text would be all it would take. For 20 or so pages they wrote, all they did was look at the motherboard spec sheet and photos and summarize each boards capabilities. I used to write theory of operation manuals with block diagrams, logic diagrams, timing diagrams and painstakingly detailed write-ups mostly for the Air Force and Navy. But I did all the digital logic circuitry, not the RF or power stuff, since we had other guys for those technologies. At this point I'm not interested enough to find all the IC spec sheets and attempt to surmise the capabilities of each one.