On IDF 2016 Synopsys showed a motherboard with PCIe 4.0
PCI Express 3.0 is on the market for quite a long time. For six years graphics cards and some other devices use PCIe 3.0 in most cases this is enough.
But soon we should expect the introduction of PCIe 4.0. It will double the data transfer rate, that is, to bring it to 16 GT/s. whether it is the market? The source believes that the main segment, which will be the first to use the increased capabilities of the interface will be not the video card, and SSD and a high-speed network adapters.
Due to the greater speed of the interface, SSDs format M. 2, connected by the PCIe, will be able to provide greater data transfer rate for the same four selected lines.
On IDF 2016 Synopsys has demonstrated a motherboard with support for PCIe 4.0, but it is unclear exactly when the first products appear on the market.