NVIDIA vs. Radeon Linux 5.0 + Mesa 19.0 Drivers - 14-Way Gaming GPU Comparison
Mad Max with Vulkan saw the RX Vega 64 coming in shy of the GeForce RTX 2060 performance with the latest Linux drivers.
The Metro Last Light Redux game still has a performance regression with RadeonSI.
The SuperTuxKart open-source racing game can become quite demanding at 4K on today's graphics cards.