The intel pentium dual core brand refers to mainstream x86-architecture microprocessors intel. These are based on either the 32-bit(yonah) or 64-bit cores, targeted at mobile or desktop computers respectively. A newer series of mobile Pentium Dual-Core CPUs is a half-cache Merom.
The Intel Pentium Dual-Core processors, E2140, E2160, E2180, E2200, and E2220 use the Allendale core, a stripped-down version of the Conroe core, featuring 1MiB L2 cache natively as compared to the Conroe core which features 4MiB L2 Cache natively. Intel has shifted its product lines having the Core 2 line as Mainstream/Performance, Pentium Dual-Core as Mainstream, and the new Celeron (based on the Conroe-L core) as Budget/Value. The E2xxx processors have half of their L2 cache disabled, from 2MiB to 1MiB.
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