Intel has been struggling to come to terms with having major competition in the CPU market again, but then AMD went and stirred up the enterprise market with its upcoming Epyc family of Zen-based CPUs. This has pushed Intel onto the offensive, so much so that they've had to make slides saying AMD's new Epyc CPUs have 4 'glued-together' CPU dies.
As you can see, the slide clearly says that AMD's new Epyc processors is a "re-purposed desktop product for server", and that AMD has a "poor track record" and is a "inconsistent supplier".
Intel is trying to make Epyc not sound strong at all, yet AMD is using a very technologically superior method of using 4 x Zen CPU cores into a single package. Sure, it's not one giant package with all of the CPU cores in it, but rather it is many dies each consisting of CPU cores, all joined together. This has multiple benefits for AMD, especially at the manufacturing level - as it's making Zen CPU dies it will know which ones are successful at maximum speeds and core counts.
It can use this knowledge of the smaller Zen CPU dies and package all of the best ones into an Epyc CPU, so that if one of the Zen CPU dies fails, it doesn't have to replace the entire die - it can substitute out 1/4 of the Epyc CPU and replace it. Making many millions of Zen CPU dies is great for mass production, as it drives AMD's prices down the more they make - allowing them to be flexible with SKUs. AMD can continuously learn and adapt from Zen, which will eventually filter down to having massive amounts of CPUs cores - at a much cheaper price than Intel can offer, to the desktop.
AMD is already enjoying the fruits of its Zen labor with Ryzen ThreadRipper, which will offer consumers 16C/32T - something desktop users have never had. The price of Ryzen ThreadRipper will be the big deal here, as we should expect something like $799. AMD Ryzen 7 1800X debuted at $499, but it is an 8C/16T CPU - but think about it. If we had 2 of those "glued together", we have 8C/16T + 8C/16T = 16C/32T... ThreadRipper.
ThreadRipper is 2 x AMD Ryzen 7 1800X processors "glued together" for a monster 16C/32T processor for the desktop, with a beefed up X399 chipset that is technologically superior to Intel's new X299 chipset. The thing is, I don't see Intel making any "glued together" CPUs... where's my Core 14 with 2 x Core i7 processors glued together, damn it!