TechPowerUp published AMD Radeon RX 6400 Tested on PCI-Express 3.0
A quote from the article:
AMD is using a fairly narrow PCIe x4 interface on their Radeon RX 6400 GPU. We're taking AMD's new budget offering for a spin in a PCI-Express 3.0 configuration, to determine how big the performance hit will be when running on an older system.AMD Radeon RX 6400 Tested on PCI-Express 3.0
