http://www.pcgamer.com/hps-drool-worthy-workstations-are-insanely-powerful-and-upgradeable/

You are probably not considering a workstation for your next gaming PC (nor should you), but if you're curious what some game developers will be using to create next-generation experiences, feast your eyes on HP's new line of workhorses.

HP unveiled three new models today—the Z8, and Z6, and Z4. These are HP's most powerful models to date, which is the usually the case when introducing a new generation of machines, but what's impressive is how much performance you cram into one of these things. They're also incredibly upgradeable.