Apple has presented yesterday the new line of XServe, featuring the newest Nehalem Xeon processors, which should double the performances compared to the previous models, according to the official data:

“The new Quad-Core Intel Xeon “Nehalem” processors deliver outstanding performance through an enhanced microarchitecture, integrated memory controller, and two new features: Turbo Boost, which dynamically speeds up the cores in use when others aren’t needed; and Hyper-Threading, which allows two threads to run simultaneously on each processor core.”

It’s already available for purchase from $2999 from the official Apple Store. More specifications can be found on this link.