AMD Radeon R9 285 Tonga Performance On Linux

When spanning these different OpenGL/OpenCL workloads, the overall AC system power consumption for the Radeon R9 285 worked out to a 202 Watt average for the i7-5960X system and a peak of 241 Watts -- measurably ahead of the GTX 760, but again, the performance-per-Watt as shown on the previous pages can differ.

The temperature of the Radeon R9 285 while being stressed with the Unigine Valley workload was quite reasonable in the mid-50s. Unfortunately, only for the R9 285 are any thermal results on the AMD side... All Radeon GPUs were tested from the same driver (fglrx 14.30.4) as it had the R9 285 support, but sadly for non-Tonga GPUs the amdconfig utility needed to read the GPU core temperature wouldn't report any data over the utility saying all of the other AMD GPUs were unsupported. This silly artificial limitation is sadly common with some Catalyst Linux driver releases for amdconfig.