RADV vs. AMDGPU-PRO Vulkan Performance vs. OpenGL In May 2017

With the open-source RADV Radeon Vulkan driver recently hitting the milestone of effectively being Vulkan 1.0 compliant, I figured this warranted a good time for running a fresh open-source Vulkan vs. AMDGPU-PRO Vulkan performance comparison on various graphics cards. For additional context, the RadeonSI and AMDGPU-PRO OpenGL numbers are also present to provide additional value.