Xeon is an marketing name for Intel’s server-class CPUs from the Pentium family.

Intel has manufactured and sold Xeon versions of the Pentium II, Pentium III, Pentium 4, and Pentium MP CPUs.

Xeon CPUs are differentiated from each other by their CPU speeds, Front Side Bus speeds, and the size of their L2 cache and L3 cache.

Current Xeon CPUs require the use of Dual Channel DDR or DDR2 SDRAM.

Intel also manufactures low-voltage versions of the Xeon CPUs. In addition to reduced voltage, these Xeon’s also produce less heat.