AMD RadeonSI Gallium3D Performance Has A Long Way To Go

One note worth pointing out for reference is that with the yet-to-be-released Linux 3.10 kernel there is RadeonSI tiling support on the kernel side that has the potential of boosting the performance a bit, but that's obviously not yet shipped in Fedora 19. There will certainly be more RadeonSI benchmarks to come of the latest Git code in future Phoronix articles.

Aside from the RadeonSI performance coming up short, worth noting is that the RadeonSI Gallium3D driver only is in full compliance with the OpenGL 2.1 specification at this time. Meanwhile, the R600 Gallium3D driver advertises OpenGL 3.1 support and is closing in on OpenGL 3.2/3.3.

During the RadeonSI Gallium3D testing, for a few of the tests there was also incorrect rendering. Xonotic appeared to be most problematic for RadeonSI while R600g works great.

Benchmarking occurred from the Intel Core i7 4770K "Haswell" system for these seven different AMD Radeon graphics cards from Fedora 19's open-source driver stack. All benchmarking was handled in a fully automated and reproducible way using the Phoronix Test Suite software.