GL_vs_VK: A Micro-Benchmark Looking At The Overhead Of OpenGL vs. Vulkan APIs

Onto the benchmarking....

With the static scene multi-threaded version for each API we see Vulkan being significantly faster than OpenGL. The performance is still rather CPU bound with NVIDIA in the lead followed by RADV/RadeonSI, which was delivering higher performance for both OpenGL and Vulkan than AMDGPU-PRO.

In the non-threaded version of the static scene, Vulkan was still noticeably faster than OpenGL but not by the margins encountered with the multi-threaded version.