Compact workplace. HP has had an all-in-one workstation in its portfolio for quite some time. Despite the compact build, its performance, maintainability and flexibility are not to be inferior to conventional desktop stations. We tested just what can be expected of HP's Z1 G2.
http://www.notebookcheck.net/HP-Z1-G2-AIO-Workstation-Review.156343.0.html
Can I suggest you include an autocad benchmark test.. although I personally hate autocad, as it is used legally and illegally by millions of users it is probably more relevant that Maya, Solidworks etc to most people.
One possible test is this
http://www.cadalyst.com/benchmark-test