The pci express 4.0 standard is officially announced

PCI-SIG, the organization responsible for the PCI connectivity standard, has officially released its new PCI Express 4.0 standard after a long process of reviewing the new standard that will serve graphics cards and many more devices.

PCI Express 4.0 has reached maturity and is ready

This PCI Express 4.0 standard is a very important development for the PCI interface, the new revision offers 2 times the bandwidth of per lane compared to the previous PCI Express 3.0, this allows PCI Express 4.0 devices to use half of the PCIe lanes and offer the same bandwidth as current devices or offer connectivity speeds twice as fast when using all the available lanes. Providers are already working on implementing PCI Express 4.0 on their future devices.

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We've seen unprecedented early adoption! Prior to publication, we have confirmed the existence of numerous providers with 16GT / s PHY on silicon and IP providers that already offer a 16GT / s controller. Given the interest, we held a pre-post compliance workshop with preliminary FYI testing just for the PCIe 4.0 architecture that attracted dozens of solutions. We continue to conduct FYI tests in our workshops throughout the rest of the year.

PCI Express 4.0 is designed with several other features in mind including reduced system latency, lane margins, extended labels and credits for service devices, superior RAS capabilities, scalability for additional lanes, and bandwidth and improved I / O virtualization and platform integration.

PCI-SIG plans to accelerate the development of its future future standards, its intention is to finalize PCI Express 5.0 in the second quarter of 2019 with the main objective of increasing pure speed instead of other feature updates. PCI Express 5.0 will offer 4 times the bandwidth of the current PCI Express 3.0.

PCI Express 3.0 is still more than adequate for the needs of today's consumers, however this is likely to change in the future as NVMe SSDs, Optane system accelerators or more GPUs hungry for the market. bandwidth.