The new Xserve works faster, harder and more efficiently than ever before. And it all starts with the 64-bit Quad-Core Intel Xeon "Harpertown" 5400 series processor. Thanks to this powerful 45-nanometre 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 utilise it. The enhanced SSE4 SIMD engine handles 128-bit vector computations in a single cycle.

The power of new Mac OS X Server 10.5 is a reflection of Apple's operating system strategy, one that favours open industry standards over proprietary technologies. It begins with an open source core and BSD networking architecture-delivering the capabilities you expect of a UNIX operating system, such as fine-grained multithreading, symmetric multi- processing, and protected memory. Mac OS X Server provides a stable, high-performance platform for deploying groundbreaking enterprise applications and services.