An OWC 64GB memory kit was installed for the tests.
Test results have all been updated to include the 2.7 GHz 12 core 2013 Mac Pro with D700 GPUs.
The Unigine Valley application uses 3D rendering. Here the D700 GPUs show a clear speed improvement over the D500 GPUs. Regrettably the Valley application uses only one of the two GPUs (like most applications as yet).