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newegg One of the most exciting components in the computer is the CPU (Central Processing Unit), which is essentially the brain of the computer. It interprets and executes instructions and data contained in software programs as well as the commands of its user. The more generic term "processor" is often used to refer to a CPU as well. The power and performance of the CPU are the greatest determinants of a computer's overall performance.

Choosing the Right Processor
Intel and AMD are the two most prolific CPU manufacturers in the current PC market. A massive selection of processors from both companies are available at Newegg, including the famous Core 2 Extreme, Core 2 Quad, Core 2 Duo, Pentium Extreme, Pentium Dual-Core, Pentium D, Pentium 4, Celeron, Celeron Dual-Core, Celeron D, Pentium M, Core Duo, Core Solo and Xeon from Intel, and Phenom X4, Phenom X3, Athlon 64, Athlon 64 X2, Athlon 64 FX, Sempron, Turion 64 and Opteron products from AMD. It isn't always necessary to know a processor inside out before purchasing one, but it is definitely helpful to understand the performance and characteristics of a processor through terms like operating frequency, L2 cache and multi-core. For more information, please see our CPU Buying Guide and other recommended information.
Processors - Desktops Learning Center library
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