The always-increasing performance demands of cloud datacenters requires CPU developers to rethink their designs in a bid to deliver maximum performance per socket while confronting cost constraints set by slowing Moore's Law. AMD's EPYC 'Begamo' is the industry's first x86 cloud-native CPU that is based on the specially-tailored Zen 4c microarchitecture that maintains essentially the same feature set with the Zen 4 microarchitecture while halving core size requirements, reports SemiAnalysis.
AMD's EPYC 'Bergamo' processor packs 128 cores and sits in the same Socket SP5 as the 96-core EPYC 'Genoa' CPU and has a similar 12-channel DDR5-4800 memory subsystem as well as uses the same I/O die (codenamed Floyd), meaning that it also has 128 PCIe Gen5 lanes and other peculiarities of SP5 products. Being a cloud-native system-on-chip (SoC) — and, to some degree, a response to emerging Arm-based datacenter-grade SoCs from Ampere, Amazon, Google, and Microsoft — Bergamo's design was shaped by multiple factors, including efficiency, power usage, die size, and low total cost of ownership (TCO) rather than by the aim to deliver the maximum per-core performance.
