It’s found on 300 and 400-series motherboards for AMD’s first and second generation Ryzen CPUs, as well as on Intel 300-series boards used for its 8th and 9th-gen processors. PCIe 3 has been available on a huge swathe of different motherboards since 2010, and continues to be the most populous PCIe port available in 2020. Here’s what you need to know about the next generation of PCIe. PCIexpress (PCIe) is one of the most important technologies on modern motherboards, helping to get the most from the fastest SSDs to the most powerful graphics cards.īut depending on which board you buy, you may have support for the latest generation of PCIe 4, which has some notable advantages over its predecessor, PCIe 3.