As was alluded to in our New Year greeting, we have been
working on a massive graphics card / driver comparison under Linux.
Beginning with ATI/AMD hardware, we have tested a series of graphics
cards spanning the Radeon X1000, HD 2000, HD 3000, HD 4000, and HD 5000
generations using the very latest drivers. These drivers include the
official Catalyst 10.12 Linux release as well as the very latest
development code for the open-source Mesa and Gallium3D drivers. The
results for seven ATI GPUs spanning four generations with three drivers
are quite interesting.