The Apple Xserve is a powerful server for any business application.
According to Apple:
64-bit Quad-Core Intel Xeon “Harpertown” 5400 series processor. Thanks to this powerful 45-nanometer Intel Core microarchitecture processor, Xserve now runs at blazing speeds up to 3.0GHz. Each Intel Xeon processor has its own 1600MHz system bus for up to 25.6GB/s of bandwidth, so there’s even faster access to main memory.
Four processing cores deliver an incredible performance boost across the board. A massive 12MB of L2 cache per processor keeps instructions and data close to the processor cores, reducing frontside bus transactions and memory latency. Intel’s cache technology allows core pairs to share 6MB of cache. If one core happens to be idle or needs less cache resources, the other can fully utilize it. The enhanced SSE4 SIMD engine handles 128-bit vector computations in a single cycle.

