Ubuntu 14.04 To Ubuntu 17.10 RadeonSI OpenGL Performance
When pushing the Radeon HD 7950 harder with the ultra image quality settings in Xonotic, from Ubuntu 14.10 (Ubuntu 14.04 couldn't handle the ultra image quality settings for this card/driver) to Ubuntu 17.10, the performance is up by 2.26x.
GLMark2 is 70% faster from Ubuntu 14.10 to 17.10.
Meanwhile, Counter-Strike: Global Offensive has seen its frame-rate more than double from Ubuntu 15.04 to Ubuntu 17.10. The current CS:GO failed to run on Ubuntu 14.04/14.10. Ubuntu 17.10 delivered the peak performance for this game with the HD 7950.
Dota 2 on Steam would run back to Ubuntu 14.10. Here the performance has nearly doubled over the past three years.