http://www.apple.com/mac-pro/specs/
Thoughts?
It's a well-balanced machine. There was a time—quite a few years ago now—when HP, IBM and Sun manufactured workstation-class desktop computers that were designed so there was no single performance-limiting component: you hit a number of bottlenecks simultaneously. No individual device inside the box was holding you back.
The mass market for WIntel PCs made this kind of hardware engineering superfluous: not only could you throw as much performance into the enclosure as you wanted, the more-or-less open architecture made it possible to upgrade individual parts whenever new components became affordable. The machines weren't "balanced" in the traditional sense (i.e., you could almost always easily identify the deficient component), but, as we used to joke when I worked for a U.S. federal agency, they were "good enough for gummint work."
My only serious concern about the new Mac Pro is the 64 GB memory limitation. On a top-of-the-line 12-core model, that's insufficient real memory, in my opinion. (For 64-bit machines, I consider 8 GB/core to be an acceptable minimum.) On the other hand, with very fast flash as secondary memory and backing store, that may in practice be acceptable. And unless you're doing video rendering, six cores should be more than sufficient for the time-being.
