Intel Xeon

Intel Xeon is a high-performance version of Intel desktop processors intended for use in servers and high-end workstations. Xeon family spans multiple generations of microprocessor cores and two micro-architecture generations - NetBurst (Pentium 4) and Core. Xeon CPUs have the same features as Pentium 4/D, Core 2 Duo/Quad desktop microprocessors. Additionally, Xeon CPUs can work in dual processor systems. Special version of Xeon CPUs, Xeon MP, can be used in 4-way systems. Also, Xeon CPUs often have larger size of level 2 cache and/or include large level 3 cache.

Intel Xeon CPUs are almost always packaged differently from Pentium 4, Pentium D and Core 2 microprocessors, and, with a few exceptions, can work only in server-class motherboards. First Xeon CPUs were produced in 603-pin package. This package was quickly replaced by 604-pin package that fits socket 604 motherboards. Many modern Xeon processors are also manufactured in 771-land FC-LGA package - these processors require socket 771 motherboards.