A week ago Intel sparked laughs by claiming AMD's EPYC server processor consists of "4 glued-together desktop dies." Which is of course the usual marketing bullshit.
AMD's Scott Aylor provided a reply at the EPYC tech day:
“There’s a theory out there that EPYC is just 4 desktop processors glued together. When you look at throughout the presentations today, from Mike Clark, about the memory sizes and features that he has built into the core and when you hear from Kevin the security enhancements that are in there, when you hear from Jerry about the over provisioning of memory bandwidth between the devices, you hear from Sam determinism features that aren’t available from the competitor that were built for enterprise. Hopefully you will realize this is not a glued together desktop processor.” – Scott Aylor, SVP and GM Enterprise Solutions
“Could we have built a monolithic part? Absolutely. But it would have involved trade-offs that would have dragged our performance down because it would have been too large and too difficult to manufacture. Breaking Moore’s law is what we did with Infinity Fabric. Now thinking about that architectural innovation – so what? How do we think about it providing real performance and real demonstrable value”- Scott Aylor, SVP and GM Enterprise Solutions