However, the first PCIe 5.0 devices are expected to debut in for enterprise customers in 2022, with consumer offerings to follow. Intel was the first to embrace the PCIe 5.0 on the CPU side with its Alder Lake platform. The specification is backwards compatible with previous PCIe generations and also includes new features, including electrical changes to improve signal integrity and backward-compatible CEM connectors for add-in cards.
The official PCIe 5.0 standard came out in May 2019. To learn more about PCIe 4.0, check out our article What We Know About PCIe 4.0 So Far. For full support, users will need new motherboards running the X570 chipset. The AMD Ryzen 3000-series CPUs that debuted in July 2019 were the first desktop CPUs to support PCIe 4.0 x16 out of the box. It’s available for enterprise-grade servers, but only became usable with SSDs in 2019.
The PCIe 4.0 standard debuted in 2017 and offers 64 GBps of throughput.
