Sorry, the Precision 7000 is the "Fixed workstation".

You'll probably can get something with higher performance, but it'll probably also take up more space, generate more heat and make more noise. It'll also demand more time to select the components and assemble it. If you enjoy doing it, OK. If you don't, your time is more expensive than the difference.

I selected a Dell because I want a single phone number to call when something goes wrong.