AMD announces two EPYC processors with Zen 4 cores: 96-core Genoa and 128-core Bergamo

At the data center conference recently, AMD’s CEO Lisa Su announced their future EYPC processor product roadmap, including two Zen 4 architecture processors, 96-core Genoa and 128-core Bergamo.
Both EYPC processors based on the Zen 4 architecture are produced using TSMC’s 5nm process, compared with the existing 7nm process, the transistor density of the new process has doubled, the energy consumption ratio has also doubled, and the performance is about 1.25 times that of the current 7nm EPYC Milan processor.

EPYC Genoa will have up to 96 Zen 4 cores and support DDR5 and PCI-E 5.0, as well as a CXL 1.1 interface that allows consistent memory continuity between devices, for HPC, data center, enterprise, and cloud workloads. It will have good single-thread and multi-thread performance. Genoa is currently providing samples to customers and is expected to be launched in 2022.
Bergamo will have a maximum of 128 cores. It uses a Zen 4c core. This c means that this core is specifically designed for cloud-native workloads. This Zen 4c core may be smaller than the Zen 4 core on Genoa. Some unnecessary functions have been deleted to increase the density. These chips use optimized cache design to correspond to the increase in the number of cores, which means that the cache capacity may be reduced, and some caches may even be deleted directly, but AMD did not disclose specific information.

Bergamo has higher power efficiency and per-slot performance. It will use the same CPU interface as Genoa, so PCI-E 5.0 and DDR5, and CXL 1.1 are supported. It is expected to ship in the first half of 2023.