AMD’s Cezanne Ryzen 5000 Mobile processor engineering sample spotted – Zen 3 Mobile

This leak comes via Partick Schur, who has reported that Cezanne will feature eight cores. All of these cores are said to be available within a singular CCX, unifying all of Cezanne’s CPU cores into a single core complex. 

These reports regarding Cezanne sit well within our expectations for Zen 3, which is due to feature a unified L3 cache and eight cores within a CCX (CPU Core Complex). CPU communications with cores and caches outside of each core’s CCX incur a latency penalty.

Having more cores within a CCX allows more cores to communicate without these inter-CCX latency penalties. Through this, Zen 3 should offer users faster core-to-core communications, enabling increased performance levels across a variety of workloads. Another benefit is that each CPU core will have access to a larger L3 cache without considering inter-CCX latencies. 

With AMD’s Cezanne silicon being in its A0 stepping, it is probable that AMD will be ready to reveal its Zen 3/Ryzen 5000 series APUs in early-mid 2021. This shift should help make AMD more competitive within the mobile CPU market, especially if this change is combined with further iGPU changes.