Intel vs. AMD Performance-Per-Watt On Ubuntu 14.04 Linux

For a graphics benchmark while calculating the performance-per-Watt, Unigine Tropics was used.

The power consumption of the A10-7850K system was still incredibly high and drawing much more power than the Core i7 4770K Haswell system: 75 Watts vs. 124 Watts!

The Core i7 4770K runs warm, but is very powerful.

While the Radeon R7 Graphics on the A10-7850K with Catalyst are much faster than the Intel Haswell graphics with the Mesa driver, the much higher power consumption led to the APU losing on its performance-per-Watt for this demanding OpenGL benchmark. The only advantage the A10-7850K had in its performance-per-Watt was doing better than the Core i3 2120 "Sandy Bridge" CPU.

The power consumption of the A10-7850K "Kaveri" system came as a surprise for the processor and graphics bound tests it was much higher than even the Core i7 4770K "Haswell" system -- albeit the i7-4770K has a max TDP of 84 Watts while the A10-7850K is at 95 Watts. Additional tests will be carried out to see if this is a Linux-specific issue and what else there is to uncover with AMD's Kaveri on Linux.