For some more benchmarking results to share this weekend, I did some Radeon vs. AMDGPU DRM tests from Linux 4.5-rc1 on this Radeon R7 260X Bonaire graphics card. I didn't test it on AMDGPU vs. Radeon previously since this graphics card is normally busy on a daily basis within one of the racked up LinuxBenchmarking.com systems. However, in having that chassis open this weekend, I decided to run these extra results.
This is just a comparison of AMDGPU vs. Radeon DRM on the same graphics card. Mesa 11.2-devel with LLVM 3.9 SVN via the Padoka PPA was the user-space. Getting the R7 260X to run with the AMDGPU kernel driver required enabling the off-by-default AMDGPU CIK support option, updating the Bonaire firmware, and black-listing the Radeon DRM driver from the 4.5 kernel.
While in the R9 290 comparison I also tested Catalyst to make for a fun three-way, that couldn't happen for the R7 260X. When trying to boot Catalyst on this Ubuntu 15.10 system with the R7 260X installed, there were immediately problems:
Thus it's just comparing the two open-source Direct Rendering Manager drivers. Here's a teaser of some of the results:
To see all of the AMDGPU vs. Radeon benchmark results for the R7 260X, visit this OpenBenchmarking.org result file. See you there!