This Mac Pro is pretty heavily upgraded. It has the 2.7GHz 12 Core Xeon E5 processor (the best Apple has available at the time), 64GB of RAM (Also maxed out at the time, but it can be upgraded to 128GB of RAM now) and a fast 1TB SSD. This has the D700x2 configuration for 6GB of GPU per card. This GPU configuration was also the max Apple offered.