"Last week I wrote about the incredible improvements to AMD's
open-source Linux driver over the course of 2014 that showed many
significant OpenGL performance improvements for the open-source driver
on various Radeon GPUs... But how does the latest open-source code
compare to the closed-source Catalyst driver? In this article are
benchmarks from an even larger assortment of Radeon GPUs while testing
the latest Radeon Gallium3D and Catalyst drivers at the end of 2015."
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips