LSG501
Comical reply from Intel considering their xeons are basically x desktop dies stuck together….
Erm … not really. High core count Xeons are distinct monolithic silicon. I don't think Intel offer any MCM Xeons at the minute - iirc the last serious Intel investment in MCM was during the Core 2 days, when they were doing quad core by stick two dual-core dies on a package, while AMD were rushing to produce a monolithic quad core. Anyone remember how that turned out for AMD? ;)
AMD have been producing MCM server chips for ages - pretty much all of their high core count Opterons were MCMs, right through the Phenom and FX desktop lines. That would've been fine if their cores were performance and efficiency equivalent to Intels, but they weren't - Phenom was inefficient and couldn't clock highly enough, Phenom II was a big improvement but came out after Bloomfield, and FX … well, ‘nuff sed ;)
The Zen core does have worse IPC than Skylake/Kaby Lake, but it’s been tuned for server workloads/constraints - you can tell that by the fact that they can pack in so many more cores than Intel, at similar clocks, and with similar thermal design (although interestingly if you look up AMD's “equivalent” processors on ark Intel are claiming lower TDPs than AMD…). If I was Intel I'd be pushing how AMD's desktop chips are actually just massively overclocked server chips, rather than vice-versa…