Sure.. but I'm wondering about the on-die interconnect between the 4 different packages that share the die. Eg, everything seems like an EPYC is 4 Ryzen packag

Sure.. but I'm wondering about the on-die interconnect between the 4 different packages that share the die. Eg, everything seems like an EPYC is 4 Ryzen packages, and a "thread ripper" is 2 Ryzen packages. So it seems logical that there is something connecting those 2 or 4 packages, and that fabric as bandwidth and latency characteristics. If it is somehow infinitely fast, then that's great for me.