AMD’s Vega 20 GPU drivers support PCIe 4.0 on Linux

AMD's Vega 20 GPU drivers support PCIe 4.0 on Linux

AMD’s Vega 20 GPU drivers support PCIe 4.0 on Linux

AMD’s 7nm Vega graphics card has been long rumoured to feature support for PCIe 4.0, a hardware feature that would allow AMD’s next-generation graphics cards to offer up to a 2x bandwidth boost over PCIe 3.0. 

This support has been uncovered thanks to a report from Computerbase.de, who have found references to PCIe 4.0 support within AMD’s latest Linux drivers, though this isn’t a 100% confirmation that AMD’s Vega 20 7nm graphics card offers full support for the standard. At a minimum, this data confirms that AMD plans to support PCIe 4.0 in the near future, at least on the GPU side.  

AMD’s Vega 20 GPU is their first 7nm graphics product, offering a memory bus size that is double the size of their 14nm RX Vega 64, providing a 2x boost in memory bandwidth, or more if combined with modern/higher speed HBM2 memory. AMD also stated that the GPU would be 35% faster than their 14nm Vega 10 architecture, a major performance boost thanks to the move to 7nm. 

  

AMD's Vega 20 GPU drivers support PCIe 4.0 on Linux

(Image from Computerbase.de)

PCIe 4.0 is fully backwards compatible with PCIe 3.0 and older versions of the standard, which will allow AMD’s PCIe 4.0 graphics cards to be fully supported on existing motherboards. One of the major benefits of PCIe 4.0 is that it can offer access to the same performance as PCIe 3.0 using half as many lanes, which is great news for those who like to use multiple graphics cards.  

You can join the discussion on AMD’s Vega 20 GPUs listing PCIe 4.0 support in their Linux Drivers on the OC3D Forums.