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Intel Core 2 processors with vPro technology (designed for businesses) include the dual-core and quad-core branches. The Core 2 processor line was introduced on July 27, 2006, comprising the Duo ( dual-core) and Extreme (dual- or quad-core CPUs for enthusiasts), and in 2007, the Quad ( quad-core) and Solo ( single-core) sub-brands. The introduction of Core 2 relegated the Pentium brand to the mid-range market, and reunified laptop and desktop CPU lines for marketing purposes under the same product name, which were formerly divided into the Pentium 4, Pentium D, and Pentium M brands. The Core 2 range was the last flagship range of Intel desktop processors to use a front-side bus. The single- and dual-core models are single- die, whereas the quad-core models comprise two dies, each containing two cores, packaged in a multi-chip module.
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Intel Core 2 is the processor family encompassing a range of Intel's consumer 64-bit x86-64 single-, dual-, and quad-core microprocessors based on the Core microarchitecture. Pentium 4 (single-core, desktop,core 2's microarchitecture was based on P6, not netburst)
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