They come out this year
Details and photos of the chips of the upcoming AMD Epyc Bergamo processors have appeared on the Web, which in their flagship version will have 128 cores. These will be the most multi-core x86-bit CPUs at launch.
Bergamo is based on the same Zen 4 architecture as Epyc Genoa, but the latter offers a maximum of 96 Zen 4 cores, while Bergamo has Zen 4C cores. They can be called small cores by analogy with Intel CPUs, and they are indeed smaller in terms of area occupied on a chip, however, the architecture here, unlike Intel solutions, is identical, and the difference lies in the reduced cache memory of Zen 4C cores.
only AMD can do this now. Epyc Bergamo CPU Details Revealed
As a result, such a core occupies 35% less area on a chip than Zen 4. True, not only due to a decrease in cache volumes, but also due to the transition to a 4 nm process technology. Yes, Bergamo, like the Ryzen 7040, will be the most technologically advanced x86-bit CPUs on the market in this matter.
With the ability to shrink cores and all other CPU blocks, AMD has placed 128 cores on just eight chipsets. That is, unlike all other AMD CPUs on the market at the moment, one chiplet contains 16 cores, not eight. In this case, each chiplet (or CCD block) is internally divided into two CCX blocks, each of which has eight CPU cores and 16 MB of L3 cache.
Considering that Epyc Genoa offer 12 CCD chiplets and Bergamo only eight, it is possible that AMD will release 12-chip Bergamo CPUs in the future, which will not require any significant changes. Such a CPU will already receive 192 cores.
