http://www.macworld.com/article/132612/2008/03/xserver2008.html?t=225

Apple has upgraded the Xserve, its rackmount server. Now outfitted with Intel’s latest quad-core Xeon processors, today’s Xserve packs a lot more power into the same slim 1U package.

Apple’s server has the unenviable task of pleasing two disparate audiences: Macintosh users, who expect a suitably Mac-like server, and cranky server administrators, who prefer the command line and demand feature and price parity from a host of 1U server vendors. (U is a standard measure that refers to the space between shelves on a rack. It equals 1.75 inches.) The Xserve is largely successful on both fronts, but its design can force some uncomfortable compromises.

The Apple Xserve continues to be an interesting solution, whether it’s right for your business, your IT is going to depend on you, ultimately the newer Xeon processors should bring enhanced functionality and performance. Do check out this detailed review.