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PCIe 4.0 arrives in 2017, PCIe 5.0 comes in 2019

PCI-SIG confirms PCI-Express 4.0 standard for 2017, next-gen PCIe 5.0 standard comes in 2019

By Anthony Garreffa | Aug 29, 2017 07:28 pm CDT

We're currently going through the first few weeks of AMD's new Radeon RX Vega graphics card launch, and we're now hearing about PCI-Express 4.0 and 5.0 from PCI-SIG, the organization behind the PCI-Express standard.


The upcoming PCIe 4.0 standard will ramp up the interconnect bandwidth from 8GT/s to 16GT/s, and will arrive sometime next year.


Then the big leap happens with PCIe 5.0 which will push it right up to 32GT/s, offering 128GB/sec through the PCIe 5.0 slot (compared to just 32GB/sec from PCIe 3.0 and 64GB/sec from PCIe 4.0).


PCIe 5.0 will usher in 400GbE network connections possible, but the new standards will also pack enough of a punch in the bandwidth departments that we'll see major increases in performance for multi-GPU systems, with NVIDIA possibly removing the SLI connector from future GeForce graphics cards.


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