I've owned this Radeon HD 7950 for over a year now and the degree of support for these graphics cards on Linux is a most embarassing feat.
My system is Sabertooth 990FX with AMD FX-8120 @ 4GHz with 16GB DDR3 and Radeon HD 7950. CPU governor is always on performance and I do not use a compositor (compositeless XFCE).
* Catalyst 13.4 and 13.6 Beta still has worse performance than the first drivers for 7xxx on Windows.
* Many games (Steam and Wine) are either completely unplayable or have extremely bad performance, graphical issues, and input lag.
* TF2 is unplayable, the main menu is laggy and in-game FPS is ~1-5.
* DODS has input lag and FPS issues as well, among many graphical glitches.
* Steam overlay massively damages framerates to the teens.
* 2D performance is atrocious, much like the horrible 3D performance. Better not try to play ANY games at all in Linux with Radeon HD 7xxx.
* OpenCL performance is actually significantly better in Linux, however at the cost of 10-300x lower graphical performance (literally) than Windows.
* Looking at the changelog for 13.6 Beta, what has the driver development team been doing in the last month and a half? The changelog is so small it looks like it could have been programmed in a single day. Why are there so many Windows beta releases when the performance on Windows is already solid? Can't these guys make Linux a priority over Windows at this point?
* Compiz freezes the screen whenever a user drags icon on the Unity launcher, double clicks on the launcher, or installs software from the Ubuntu Software Center as an icon is added to the launcher. This is why I'm stuck to living on a compositless Xfce DE.
* Open Source driver has a massive amount of black flickering boxes all over the screen.
* AMD really needs to be communicating properly with Valve and looking over the github: https://github.com/ValveSoftware/steam-for-linux/issues?labels=AMD+drivers&state=open
In other words, it's completely broken with no sign of hope.
03:40 AM by