Complex sentence: The brand was introduced in 2017 with products implementing the Zen microarchitecture for the CPU, and the first Ryzen-branded products were officially announced during AMD's New Horizon summit on December 13,2016.
Split into simpler sentences: The brand was introduced in 2017 with products implementing the Zen microarchitecture. The first Ryzen-branded products were officially announced during AMD's New Horizon summit on December 13,2016.