Intel first launched Smithfield on April 16, 2005 in the form of the 3.2 GHz Hyper-threading enabled Pentium Extreme Edition 840.
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The processor was based on the dual-core Pentium D branded Smithfield, but with Hyper-threading enabled, thus any operating system saw four logical processors (two physical and two virtual).
Pentium | Pentium 4 | Pentium compatible processor | Pentium (brand) |