PCI Express® 4.0

With the new Ryzen 3000 series, AMD also introduced the X570 chipset with PCIe 4.0 support. For bandwidth hungry devices, the PCIe 4.0 doubles the bandwidth of existing PCIe 3.0 to up to 2GB/s per lane, or up to 32 GB/s on a x16 slot, enabling new generations of high-performance graphics cards, networking devices, NVMe drives, ethernet cards and more.

Not only can you get reduce bottleneck, you get speedier experiences including M.2 SSD access over PCIe 4.0 standard.

The future of PCIe 4.0 bandwidth starts in 2019 with the launch of 3rd Gen AMD Ryzen Desktop Processors and AMD X570-based motherboards. We’ve been working closely with leading technology partners like Phison to enable the first PCIe 4.0 ×4 NVMe controllers for consumer storage devices, as well as SSD vendors like Corsair, Galaxy and Gigabyte to help bring PCIe 4.0 drives to market.

AMD X570-based Flagship Motherboards

3rd Gen AMD Ryzen Desktop Processors will be supported by all major motherboard manufacturers. With over 100 AM4 motherboards currently in market, our partners will be introducing an additional 50+ models with the new AMD X570 chipset,  the world’s first consumer PC platform with support for PCIe 4.0 devices.

Source : AMD.com