OpenGL AMD Performance Improvements?

First, I wasnt able to post in the other, recent OpenGl related threads which seem to be closed.

 

So, what is AMD's recent take on their OpenGL improvements. Are there any plans? I am about to replace my 6 year old HD7870 which has proven to be a great companion throughout all these years! But since I got into Emulation recently (CEMU), which uses openGL and I noticed (first hand) that a Nvidia card has better openGL performance, I would like to know what AMD is cooking in this regard.

 

Is it even possible for AMD to improve their openGl drivers, or is it something hardware related?