Benchmarking Radeon Open Compute ROCm 1.4 OpenCL
Written by Michael Larabel in Display Drivers on 17 January 2017. Page 4 of 4. 35 Comments

AMDGPU-PRO 16.50 beat out the ROCm 1.4 driver with JuliaGPU.

Both OpenCL implementations failed with our Blender 3D OpenCL test.

And more wins for AMDGPU-PRO's current OpenCL implementation.

With the Polaris RX 460/480 cards on ROCm, they failed at compiling the OpenCL kernels for LuxMark's microphone test. I ended up killing the processes after they were held up by Clang for 30+ minutes to compile the kernel...

The OpenCL support in ROCm and is a step in the right direction, especially with working towards open-sourcing this OpenCL implementation as a much more viable option than the older Clover-based Gallium3D OpenCL approach. However, as shown by these results, there still is a ways to go. The OpenCL driver in AMDGPU-PRO 16.50 was faster in a majority of the workloads, ROCm 1.4 currently only supports Fiji and Polaris graphics processors, ROCm OpenCL failed with a few tests, and the current ROCm approach is suited for just Ubuntu 16.04 (similar to AMDGPU-PRO) and doesn't yet play nicely on Ubuntu 16.10, etc. Though if AMD can get their OpenCL driver open-sourced along with their long-talked-about official Vulkan driver in 2017, this should be an excellent year and complement the great state of their RadeonSI Gallium3D OpenGL driver.

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Michael Larabel is the principal author of 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 automated benchmarking software. He can be followed via Twitter or contacted via

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