AMD RadeonSI Gallium3D Performance For 4K Linux Gaming
Written by Michael Larabel in Linux Gaming on 12 September 2014. Page 3 of 4. 22 Comments

When running Tesseract at 3840 x 2160, the fastest graphics cards were the HD 7950 and the R9 270X. While the Radeon R9 290 is the fastest GPU of the bunch based on hardware specs, with the Linux 3.17 kernel there's still some apparent re-clocking issues causing the R9 290 Hawaii graphics card to not perform optimally... While the R9 290 was slow, at least it finally has working mainline OpenGL acceleration after some important fixes landed for Linux 3.17 along with updated Hawaii microcode.

With a Radeon HD 7950 and R9 270X you can comfortably run open-source titles like Warsow at around 100 FPS.

Beginning with Xonotic at high image quality settings is where the Radeon HD 7850 is beginning to act a bit odd and run lower than the R7 260X.

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