RadeonSI Gallium3D Is Improving, But Still Long Shot From Catalyst
The Prey (id Tech 4) game actually now delivers playable frame-rates and can run at close to the same speed as Catalyst on the three tested graphics cards.
The Linux 3.13 kernel and Mesa 10.0~10.1 will be found in Ubuntu 14.04 LTS when it ships in April.
Using the Oibaf PPA and Ubuntu mainline kernel repository makes it easy to upgrade to this newest system code for better RadeonSI performance on Ubuntu 13.10 Linux.