Phoronix published a review on the Vulkan vs. OpenGL On Linux With Core i5, Core i7, Ryzen 7
A quote from the article:
For those curious about the state of the Radeon Vulkan (RADV) vs. OpenGL (RadeonSI) performance with different Intel and AMD CPUs, here are some fresh benchmark results with the current Vulkan-supported prominent Linux game titles of Dota 2, Mad Max, Talos Principle, and Dawn of War III. During this opportunity for the tests across Core i5 / Core i7 / Ryzen 7 hardware were also CPU usage analytics.Vulkan vs. OpenGL On Linux With Core i5, Core i7, Ryzen 7 @ Phoronix