AMD’s new Ryzen platform ushers in the first big changes to PCIe since 2010.

Come July, AMD gets to hoist the trophy in the race to the next-generation PCIe 4.0 interface for desktop PCs. By combining its upcoming Ryzen 3000 CPUs, Radeon RX 5700 graphics, X570 chipset, and a new spate of PCIe 4.0 SSDs, consumers will be able to build or buy the first PCIe 4.0-based PC.
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https://www.pcworld.com/article/3400176/pcie-40-everything-you-need-to-know-specs-compatibility.html