The PCI-SIG consortium makes the provision of the PCIe 4.0 port official, although there is no data on when it was implemented in graphics cards, motherboards and processors.
We currently use the PCIe 3.0 port, which offers up to 32Gbps of transfer, a technology launched in 2016 and which has been in the market for six years. This technology already requires a succession, which will arrive this year through PCIe 4.0, which provides a new standard and will help improve the transfers of the M.2 and U.2 ports, in addition to allowing the development of SSD units that work at higher speeds. The standard doubles the bandwidth speed of the PCIe 3.0 x16 ports, which means that it will offer us a speed of 64Gbps.
Graphics cards will also benefit from this improvement, although as it will go from PCIe 2.0 x16 to PCIe 3.0 x16, the improvement will be minimal, but hey, a little improvement is always appreciated. The main contribution of this port is to avoid bottleneck problems that could occur in configurations of [amazon_textlink asin = 'B00P736UEU' text = 'several SSD units' template = 'ProductLink' store = 'hardwa028-21 ′ marketplace =' EN 'link_id =' fe6dea8a-8d91-11e7-b6cd-417028d14936 ′] and systems with one or more graphics cards. These problems, although very localized and quite rare, tend to occur, especially in systems with two or more SSDs in RAID configuration.
What we do not know is when AMD and NVIDIA implemented this interface, although it is possible that it will be implemented in the AMD Vega 2 or AMD Navi and possibly in the NVIDIA Volta, which would imply that the arrival of these graphics cards would be delayed. Intel and AMD have also not commented on the implementation of this connectivity in the processors and chipsets of the motherboards. PCI-SIG, on the other hand, has shown a prototype that already makes use of this connection, which is called ConnectX-5, a controller card that offers two Gigabit Ethernet ports that allow speeds of 100Gb / s. The PCIe 4.0 port will be backward compatible with PCIe 3.0 and earlier models.
We should not wait for the first product based on the PCIe 4.0 interface until next year, but that does not mean that the PCI-SIG consortium is already in development of what will be its successor, PCIe 5.0, which should be officially launched in 2019. , which would double the bandwidth of the current PCIe 4.0 standard.
