PCI-Express 4.0 to arrive next year

Published: Aug 19th 2016, 09:13 GMT

The PCI-Express 3.0 standard was released four years after 2.0. It is now 6 years since 3.0 was introduced and it is about time we see a continuation named 4.0. With the availability of new connection standards like M.2 or U.2, the push for the higher bandwidth is finally reaching PCI devices. 

PCI-SIG already planning PCIe 5.0

Although PCIe 4.0 is not released yet, PCI special group is already looking forward to bringing PCIe 5.0 devices to the market. Meanwhile, the PCIe 4.0 standard would double the data rate from 3.0’s 8 GT/s to 16 GT/s. Of course this does not mean graphics cards will be twice as fast. It means that we could at least get rid of the SLI bridges.

In graphics cards the performance difference between PCIe 1.1 x16 and PCIe 3.0 x16 interface is just few percent (see these charts for comparison). It would be very surprising if PCIe 4.0 would increase graphics performance much further.

The question is, are we going to see a transition from PCIe 3.0 to 4.0 with NVIDIA Volta and AMD Navi? Well it may be too early to speculate, but since both companies are part of PCI-SIG, I’m quite sure first prototypes are already being tested.

PCIExpress 4 PCIExpress 5

ConnectX-5 100 GB/s Adapter is the first device showcased to support PCIe 4.0 x16 interface.

connectx pcie 4

Source: Heise

Comment Policy
  1. Comments must be written in English and should not exceed 1000 characters.
  2. Comments deemed to be spam or solely promotional in nature will be deleted. Including a link to relevant content is permitted, but comments should be relevant to the post topic. Discussions about politics are not allowed on this website.
  3. Comments and usernames containing language or concepts that could be deemed offensive will be deleted.
  4. Comments complaining about the post subject or its source will be removed.
  5. A failure to comply with these rules will result in a warning and, in extreme cases, a ban. In addition, please note that comments that attack or harass an individual directly will result in a ban without warning.
  6. VideoCardz has never been sponsored by AMD, Intel, or NVIDIA. Users claiming otherwise will be banned.
  7. VideoCardz Moderating Team reserves the right to edit or delete any comments submitted to the site without notice.
  8. If you have any questions about the commenting policy, please let us know through the Contact Page.
Hide Comment Policy