According to a recent rumor, AMD would already be working on AMD EPYC 2 processors, which would have 64 physical cores and would have PCIe 4.0 lines.
An interesting rumor has sprung up, which ensures that second-generation AMD EPYC processors could reach 64 physical cores. Although this is a leak, it is based on the fact that part of the cores of the current server processors do not have all the active cores, something that was already speculated at the time with a possible 64-core processor for this generation, but that AMD would be saving it for a second generation, possibly with the 12nm manufacturing node, although all are speculations.
Who has made the news jump has been Canard PC through its twitter account, where they report that the processors would have 64 cores, possibly have 256MB of L3 cache memory, support 8 DDR4-3200 channels and 128 PCIe 4.0 lanes. This strategy by AMD was barred by the arrival of the new Intel Xeon Skylake-EP processors and the possible departure in late 2018 or early 2019 of the Intel Xeon Cannon Lake-EP processors, based on 10nm, providing great energy efficiency. .
This, of course, is all rumors, but it is not the first time that the Canard PC media has leaked information of this type and the data is always on the right track. AMD's flagship is the EPYC 7601, which has 32 cores and 64MB of L3 cache. What is most striking about this leak is the supported RAM, 3200MHz and the PCIe 4.0 lanes. Little else is known about these processors, but it may take us a year or more to see them on the market, as AMD has to launch Vega 2 and Ryzen 2 first.
