For a long time AMD drivers and performance were lower than Nvidia drivers for OpenGL. This is one of the reasons they developed the Mantle API because they wanted to have an advantage in low-level graphics.
However, things may soon change for the better. In the latest 22H2 Insider builds for Windows 11, Microsoft is offering AMD UWP Driver 31.0.12000.20010 Preview, and the driver package also ships with OpenGL Beta Driver 22.05, which greatly improves the performance of AMD GPUs in OpenGL applications. The driver was discovered by members of the Guru3D forum who experimented with it. This upcoming driver will be based on the Windows Next Generation Display Driver Model (WDDM) version 3.1.
Here is a screenshot of driver details using GPU-Z by TechPowerUp, provided by Guru3D contributor “The Creator”:
A number of benchmarks in synthetic benchmarks were also run with this driver and using the OpenGL API renderer, the performance difference is very significant. First, we have the 2013 Unigine Valley benchmark, which shows a performance gain of almost 55%.
Further, in the more modern Unigine Superposition, the performance difference is over 33% in favor of the upcoming OpenGL 22.05 driver.
Interestingly, though, the driver seems to lose performance on the much older Heaven test, indicating that very old apps and games may need some more optimization.
While the above tests were done on the RDNA 2-based Radeon RX 6800 XT, it looks like the first generation RDNA GPUs will get a big boost as well. Here is a screenshot of Superposition running on the Radeon RX 5700 XT.
AMD seems to have faltered a little lately, as the company also recently released driver 22.5.2, which greatly optimized several DirectX 11 games.