Complex sentence: The current 2012 Mac Pro is largely based on a model that was announced on July 27,2010, and features Intel Xeon processors that are designed upon the Nehalem/Westmere architectures.
Split into simpler sentences: The current 2012 Mac Pro is largely based on a model that was announced on July 27,2010. It features Intel Xeon processors that are designed upon the Nehalem/Westmere architectures.