The Intel Xeon 5063 was a server/workstation processor with 2 cores, launched in May 2006. It is part of the Xeon lineup, using the Dempsey architecture with Socket 771. Thanks to Intel Hyper-Threading the core-count is effectively doubled, to 4 threads. To further increase overall system performance, up to two Xeon 5063 CPUs can link up in a multi-processor (SMP) configuration. Xeon 5063 has 2 MB of L2 cache per core and operates at 3.2 GHz. Intel is building the Xeon 5063 on a 65 nm production process using 376 million transistors. The multiplier is locked on Xeon 5063, which limits its overclocking capabilities.
With a TDP of 95 W, the Xeon 5063 consumes a good deal of power, so decent cooling is needed. Intel's processor supports DDR2 memory. ECC memory is supported, too, which is an important capability for mission-critical systems, to avoid data corruption. This processor lacks integrated graphics, you might need a graphics card.
The SSE4 instruction set is not supported, which can cause problems with modern games, as they require that capability.