AMD 8000G series processor details exposed: Phoenix 2 supports halving the number of PCIe channels

The AMD 8000G series chips use two different types of microarchitectures. Some models use Phoenix 1 and only come with the Zen 4 core; The other part uses Phoenix 2 and adopts the Zen 4+Zen 4C architecture. However, according to the information noticed by PCGamesN, there is a difference between Phoenix 1 and Phoenix 2 according to the specifications of the Gigabyte B650E Aurus Elite X AX Ice motherboard. The Phoenix 2 chip supports fewer PCIe channels than Phoenix 1. When connecting NVMe SSDs through M.2 slots, only 2 PCIe 4.0 channels are supported, and when connecting 1 GPU, only 4 PCIe 4.0 channels are supported.

Compared to this, Phoenix 1 supports 8 PCIe 4.0 channels when connected to a GPU, and also supports solid-state drives with full PCIe 4.0 x4 interfaces.

Taking Ryzen 5 8500G and Ryzen 3 8300G as examples, the Ryzen 8000G processor using the Phoenix 2 chip may reduce graphics performance due to fewer dedicated GPU channels.

And processors based on Phoenix 1, such as Ryzen 5 8600G and Ryzen 7 8700G, can avoid potential graphics performance degradation issues.