The Pentium is the fifth microprocessor in Intel's 8086 line. Released on March 22, 1993, it replaces the 486 DX and contains 3,100,000 transistors, almost three times the number of its predecessor. Its name is derived from the Greek word for five, pente, and its code name is P5.
The Pentium chip utilizes a 64-bit data bus, wider than the 8-bit bus of its 8086 predecessors, that enables it to grab 64 bits of data for processing at a time. It has an integrated, floating-point math co-processor, a faster version of the one that first appeared on the 486 DX. It uses separate code and data caches to diminish data latency and dual integer pipelines for faster processing speeds.