Zink OpenGL-On-Vulkan vs. RadeonSI OpenGL Performance As Of January 2021
With the DDraceNetwork open-source, cooperative platformer game the Zink performance at 1080p was certainly playable at more than 120 FPS for the RX 5600 XT, but it amounted to less than half the performance of the RadeonSI native driver.
With the open-source ETLegacy game that is letting Wolfenstein: Enemy Territory continue on as an open-source project, Zink wasn't even able to put out 30 FPS on average with this game.
Similarly, OpenArena as another ioquake3 / id Tech 3 era game, struggled to hit 40 FPS with Zink on this high-end AMD Navi graphics card.
The Tesseract open-source OpenGL game hung each time mid-way through with its demo running on Zink.