Linux 3.12 Can Change AMD's Catalyst Performance
Written by Michael Larabel in Display Drivers on 16 October 2013. Page 2 of 2. 12 Comments

For heavier OpenGL workloads or those very light, the Linux 3.12 CPUfreq changes will likely have no impact on the overall performance. The previous articles explain the issue in greater detail.

It's only a few percent improvement with the Linux 3.12 kernel on the Core i7 4770K + Radeon HD 7950 configuration, but it's there and reproducible due to the CPUfreq governor behavior change. The open-source Radeon and Nouveau drivers tended to make a much larger difference on OpenGL frame-rates.

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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 20,000 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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