AMDGPU vs. Radeon GCN 1.0/1.1 Performance On Linux 4.9 DRM-Next
Written by Michael Larabel in Display Drivers on 4 October 2016. Page 4 of 4. 62 Comments

The results for these other tests don't really show anything new.

The R9 270X and R7 370 (Pitcairn) GPUs consistently performed worse with the AMDGPU experimental support while the Radeon HD 7950 performance was close to the same throughout testing though in Tesseract did slightly better with the more modern DRM driver. The Radeon R7 260X saw mostly the same performance level between the two kernel drivers except for regressing in Metro Last Light Redux.

Keep in mind the AMDGPU GCN 1.0/1.1 support is experimental in Linux 4.9 and requires rebuilding your kernel with the Kconfig options enabled in order to use this alternative to Radeon. While the performance is unchanged or worse, at least in time this support will hopefully improve and it will allow for AMDGPU-PRO / Vulkan / RADV support for AMD GPUs going back to GCN 1.0. Stay tuned for more benchmarks as the support stabilizes.


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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.


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