PCIe 4.0 spec released, PCIe 5.0 follows in 2019

PCI-SIG releases PCIe 4.0 specs, should arrive VERY SOON with PCIe 5.0 coming in 2019.

@anthony256
Published Thu, Oct 26 2017 7:44 PM CDT   |   Updated Tue, Nov 3 2020 11:53 AM CST

PCI-SIG, the organization behind the PCIe standard has released the finalized specs on PCIe 4.0, with some highlights that impress. We have up to 16GT/s of bandwidth with PCIe 4.0, up from the 8GT/s of bandwidth offered on PCIe 3.0 - but it's PCIe 5.0 that has my mouth watering with a huge 32GT/s of bandwidth, and will arrive in 2019.

PCIe 4.0 spec released, PCIe 5.0 follows in 2019 | TweakTown.com

As for the PCIe 4.0 highlights, this is what Chairman and President of PCI-SIG, Al Yanes, had to say:

  • Extended tags and credits for service devices
  • Reduced system latency
  • Lane margining
  • Superior RAS capabilities
  • Scalability for added lanes and bandwidth
  • Improved I/O virtualization and platform integration

What will PCIe 4.0 provide us, other than just ridiculous amounts of bandwidth? As Tom's Hardware points out, PCIe 4.0 will provide the bandwidth to make cheaper NVMe SSDs possible, as they'll need just half the PCIe lanes, while 10GbE connections over a single PCIe lane would be made possible. That kind of speed is impossible right now with limited PCIe lanes.

We shouldn't expect Intel to adopt PCIe 4.0 until at least mid-2019, with AMD announcing support for PCIe 4.0 for sometime in 2020. PCIe 5.0 on the other hand should be finalized before then, with PCIe 5.0 products planned for 2020-2023, which is quite a while away from now.

Once we get to the point of having PCIe 4.0 and PCIe 5.0 on our motherboards, we can start talking about single graphics cards running 4K 120 and 8K 60, as well as super high-end VR/AR/MR technology that will require some truly next-gen GPUs to run at 120FPS or more.

NEWS SOURCE:tomshardware.com

Anthony joined the TweakTown team in 2010 and has since reviewed 100s of graphics cards. Anthony is a long time PC enthusiast with a passion of hate for games built around consoles. FPS gaming since the pre-Quake days, where you were insulted if you used a mouse to aim, he has been addicted to gaming and hardware ever since. Working in IT retail for 10 years gave him great experience with custom-built PCs. His addiction to GPU tech is unwavering.

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