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Processor This little chip is the heart of a computer. Also referred to as the "microprocessor," the processor does all the computations such as adding, subtracting, multiplying, and dividing. In PCs, the most popular microprocessor used is the Intel Pentium chip, whereas Macintosh computers use the PowerPC chipThe speed of a computer's processor is measured in megahertz, or cycles per second.
But higher megahertz doesn't always mean better performance. Though a 600-MHz chip has a clock speed that is twice as fast as a 300-Mhz chip, it doesn't mean that the computer with the 600-Mhz chip will run twice as fast. This is because the speed of a computer is also influenced by other factors, such as the efficiency of the processor, the bus architecture, the amount of memory available, and the software that is running on the computer.
Some processors can complete more operations per clock cycle than other processors, making them more efficient than other processors with higher clock speeds. This is why the PowerPC chip is typically faster than Pentium chips at that are clocked at higher megahertz. A processor is the logic circuitry that responds to and processes the basic instructions that drive a computer. The term processor has generally replaced the term central processing unit (CPU).
Dual Core:-The Intel Pentium processors with Intel dual-core technology deliver great desktop performance, low power enhancements, and multitasking for everyday computing.The pentiumDual-Core brand was used for mainstream x86-architecture microprocessors from Intel from 2006 to 2009 when it was renamed to Pentium. The processors are based on either the 32-bit(with quite different microarchitectures) 64-bit Merom-2M, Allendale, and Wolfdale-3M core, targeted at mobile or desktop computers.
Core i3: The Intel Core i3 3220-3240 models are dual-core, built on a 22 nanometer process, they have Hyperthreading(!), but do not have Turbo Boost. They have built-in graphics processors, most of them using the HD Graphics 2500 architecture (except the 3225 which has HD Graphics 4000).
Core i5: The Intel Core i5 3330-3570 models are quad-core, built on the 22 nanometer process (for better power efficiency), they have Turbo Boost technology, but no Hyperthreading. They have built-in graphics processors based on the HD Graphics 2500 and 4000 architectures.
Core i7: The current Intel Core i7 models comprise two different product lines – they require different motherboards and have differing capabilities. The Core i7 3770 generally fits the same motherboards as the current i3 and i5 models, it’s built with the 22 nm process, has four cores, Hyperthreading, Turbo Boost, and built-in HD Graphics 4000. It’s also relatively inexpensive when compared with the other current Core i7 chips.
The Core i7 3820-3970 models are the only Core-series chips that fit socket 2011, so there are a full line of motherboards that are designed specifically for these chips. There are four-core and SIX-core chips in this range, they are built on a 32nm process, they all support Hyperthreading and Turbo Boost, but they do NOT have built-in graphics capability. There are many other differences between all these models that are beyond the scope of this simplified blog post, but those are some of the main differences.
