intel products
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.
MULTI CORE
A multi-core processor (or chip-level multiprocessor, CMP) combines two or more independent cores into a single package composed of a single (IC), or more dies packaged together. A dual-core processor contains two cores, and a quad-core processor contains four cores. A multi-core microprocessor implements in a single physical package. A processor with all cores on a single die is called a monolithic processor. Cores in a multicore device may share a single coherent at the highest on-device cache level ( or may have separate caches (e.g. current dual-core processors). The processors also share the same interconnect to the rest of the system. Each "core" independently implements optimizations such as execution, and . A system with n cores is effective it is presented with n or more . The most commercially significant (or at least the most 'obvious') multi-core processors are those used in (primarily from Intel and AMD) and game consoles (e.g., the eight-core processor in the and the three-core in the ). In this context, "multi" typically means a relatively small number of cores. However, the technology widely used in other technology areas, especially those of as and in GUI
The amount of performance gained by the use of a multicore processor depends on the problem being solved and the algorithms used, as well as their implementation in software For so-called problems, a dual-core processor with two cores at 2GHz may perform very nearly as quickly as a single core of 4GHz. Other problems, though, may not yield so much speedup. This all assumes, however, that the software has been designed to take advantage of available parallelism. If it hasn't, there will not be any speedup at all. However, the processor will better since it can run two programs at once, one on each core.
CORE 2 DUO
The Core 2 brand refers to a range of intel consumer 64 bit single- and dual-core and 2x2 (Multi-Chip Module) quad-core cpu with the x86-64 instruction set, based on the Intel , derived from the laptop processor. two interconnected cores, each similar to those branded . The 2x2 dual-die quad-core CPU had two separate dual-core dies (CPUs)—next to each other—in one quad-core package. The Core 2 relegated the brand to a , and reunified laptop and desktop CPU lines, which previously had been divided into the Pentium .
The Core microarchitecture returned to lower clock rate and improved processors' usage of both available clock cycles and power compared with preceding Core microarchitecture provides more efficient decoding stages, execution units, , and buses, reducing the Core 2-branded , while increasing their processing capacity. Intel's CPUs have varied very wildly in power consumption according to clock rate, architecture and semiconductor process, shown in the tables.
The Core 2 brand was introduced on July 27, 2006, comprising the Solo (single-core), Duo , Quad and Extreme (dual- or quad-core CPUs for enthusiasts) branches, during 2007. Intel Core 2 processors with vPro technology (designed for businesses) include the dual-core and quad-core branches.
The brand became immediately successful. The processors were introduced into Apple's popular MacBook series of notebooks, at the time Apple CEO justified the entire switch to Intel from IBM's processors by the Core 2 series' ability to provide high performance at low power consumption, renaming the "PowerBook" series to MacBook to note their lowered power consumption. The series of processors reasserted Intel's role in the processor market after a period in which processors began significantly encroaching on Intel's market share. The processor series became so successful that AnandTech Senior Editor Gary Kay coined the phrase "Conroe" as a verb to describe the releasing of a product that eclipses the competition in a previously hotly contested market.
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