Dual Core (Intel Pentium-D) - Moore's Law In Pictures
By the beginning of the 2000s, microprocessor engineers began to realize that keeping up the momentum of Moore’s law would become impossible without completely new designs. One way to dramatically improve performance was to build multiple microprocessor cores onto a single chip. Intel started with a dual core processor in 2005. First, there was the Pentium Extreme Edition, but it was the Pentium-D that made it into mainstream machines.