Originally Posted by bigjdubb
Isn't Zen 2 considered an MCM design that uses infinity fabric?
I suppose it could be in a way, but normally when you talk about MCM the dies are right up against each other and are two full dies in one package.
Zen2 is a chiplet design, and each section while layed out in the same manner as an MCM, is its own separate die on a different part of the package and they do not contain the entire CPU within them. You have your front end in one die, and core sections in other dies. Ryzen 1 would probably be considered more of an MCM though.
This would be an MCM, where it was two, dual cores dies cut as a single unit on a package. You can see the seam between the die sections in the middle:
This was the next evolution and was a single die designed that way:
Then you have Zen 2, with its chiplet design which is kind of an evolution of MCM:
Likewise, the image shown by the other posters would be two GPU dies cut as a single in an MCM layout: