I turned wei off on my win 10 PC as it was setting my desktop wallpaper to a smaller size than screen and GPU can actually run it at. It made it 1080p, I have 4k.. lots of black around edge of the image lol. It may not have been WEI doing it but as soon as I turned off service, it stopped.
I think WEI was taken out so people with low end pc could still believe the line spread by Microsoft about how every pc can easily run win 10. If they could see their actual scores they may think otherwise. I ran it on my pc while on 7 and got 9.7 as base score... Microsoft hadn't really adjusted the scale to take into account all the PC that can easily score 10 across board. Adjust scale too much and many people they trying to get onto win 10 may see their scores of 4 or less and think otherwise
benchmarks like 3dmark and AIDA64 are better suited at figuring out what hardware is capable of
Motherboard overclocking: I don't think there is a one stop shop for this info, many motherboards have the features now, some just have more options. If you pay for a ROG board you get more than if you buy the basic Asus board, for instance.
CPU need to be K versions now for Intel, not sure about AMD
Graphics is like motherboard, some are bettter than others and not every one is same, two identical models can have different speeds, it depends on the quality of the chips.. luck of the drawer
You can overclock RAM using XMP profiles
everything else in pc is either power or storage, neither benefits from overclocking them
not all cpu are same, it depends on the luck of drawer. 2 identical chips oc may reach different max speeds.
GPU OC: chip speed and memory I think (I never done it)
SLI: Yes, but its game by game basis. Not all games use SLI/Crossfire
Graphics cards can be used for processing, many Mainframes use GPU for number crunching. Think bit coin miners use them too.
no idea about rivets
I have an I5, 4 extra virtual cores would be nice. They aren't as good as real ones but they better than nothing.