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Processors

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  1. Toshiba  PERIPHERALS

    MPN:

    Toshiba

    In stock

    $0.01
  2. Intel  Xeon E3-1225V2

    MPN: CM8063701160603 SR0PJ

    Intel

    In stock

  3. Intel  Xeon E5-2660 V2

    MPN: CM8063501452503 SR1AB

    Intel

    In stock

  4. Intel  Core i7 i7-3537U

    MPN: AV8063801119700 SR0XG

    Intel

    In stock

  5. Intel  Pentium 4 3

    MPN: RK80546PG0801M SL7PM

    Intel

    In stock

  6. Intel  Pentium 4 PENTIUM IV

    MPN: RK80546PG0721M SL79K

    Intel

    In stock

  7. Intel  Pentium 4 2.8

    MPN: RK80532PE072512 SL6PF

    Intel

    In stock

  8. Intel  Celeron 1.3

    MPN: RK80530RY013256 SL5VR

    Intel

    In stock

  9. Intel  Pentium Mobile 2

    MPN: RH80532GC041512 SL6CL

    Intel

    In stock

  10. Intel  Pentium Mobile 1.7

    MPN: RH80532GC029512 SL5Z7

    Intel

    In stock

  11. Intel  Xeon 3.2

    MPN: NE80546KG0881M SL8KQ

    Intel

    In stock

  12. Intel  Xeon 1.66

    MPN: LF80539KF0282M SL9HP

    Intel

    In stock

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Boost your computer’s performance by upgrading or adding a CPU (or central processing unit) to your system. Whether you are updating your computer or building your own PC, it is important to find the computer processor that is the best fit for your budget and your workload. Smithbuy offers a wide variety of new and refurbished processors from Intel and AMD to meet your computing needs. Choose from our selection of CPUs for mobile and desktop including i5 processors, i7 processors, and Xeon processors. 

What is a CPU?

A CPU (central processing unit), is a complete computation engine that is fabricated on a single chip. This is made into a chip, or integrated circuit. It is usually a small, thin piece of silicon where transistors are etched. There are five basic elements that are considered with CPU’s: transistors, microns, clock speed, data width, and MIPS.

Transistors: Measure by the number of transistors on a chip. These numbers have increased steadily over the years. There is a relationship with the number of transistors to MIPS.

Microns: The width of the smallest wire on the chip is measured in microns. For example, a human hair is around 100 microns thin. As the feature size on the chip decreases, the number of transistors increases.

Clock Speed: The max rate the chip can be clocked at. This depends on the manufacturing process and delays within the chip. There is a relationship between clock speed and MIPS.

Data Width: The width of the ALU (Arithmetic/Logic Unit). For example, an 8-bit ALU can add/subtract/multiply two 8-bit numbers, while 32-bit ALU can manipulate 32-bit numbers.

MIPS: Millions of instructions per second. This is a rough measure of the CPU performance. Modern CPU’s are so versatile that MIPS ratings have lost a lot of their significance.

CPU’s utilize assembly language, and an engineer can do many things to boost the speed of a processor.

A CPU operates based on instructions, and there are three basic things they can do:

  1. A CPU operates based on instructions, and there are three basic things they can do:
    1. Modern CPU’s can contain complete floating-point processors that can perform very sophisticated operations on large floating-point numbers
  2. Move data from one memory location to another
  3. Make decisions and jump to a new set of instructions based on those decisions