Intel is the largest manufacturer of semiconductor computer circuits or processors in the world. Intel has been one of the most successful companies in the microprocessors business for the last two decades. We will talk about Intel’s two most popular processors, Intel Pentium and Celeron. Celeron is a less powerful version of the Pentium. We will look at the most important differences between the Intel Pentium and the Celeron chips. But first, we need to know what a computer processor is all about.

A processor, or microprocessor, is a small chip that resides in computers and other electronic devices. Its basic job is to receive input and provide the appropriate output.

The central processor of a computer is also known as the CPU or central processing unit. This processor handles all the basic system instructions, such as processing mouse and keyboard input and running applications. Most desktop computers contain a CPU developed by either Intel or AMD, both of which use the x86 processor architecture.

Modern CPU often include multiple processing cores, which work together to process instructions. While these cores are contained in one physical unit, they are individual processors.

Processors that include two cores are called dual-core processors, while those with four cores are called quad-core processors.

Intel Pentium

The Intel Pentium was released by Intel on March 22, 1993, as a replacement to the 80486 processor. The name comes from the Greek word for “five” and is used because it’s the fifth processor in the 80×86 line. The Intel processors were available between speeds of 60 MHz and 300 MHz, had a 64-bit data bus, and had 1.9 million more transistors when compared to the 80486DX (3.1 million).

Intel Celeron

Intel Celeron is a less powerful version of the Pentium processors. The majority of Celeron processors are based on Pentium II/Pentium III cores and run at speeds of 1.4 GHz or less. Celeron is the Intel family of low-end IA-32 and x86-64 chips designed specifically for low-cost personal computers. Compared to Pentium, Celeron chips have a significantly lower performance with low cache memory. Originally based on the Pentium II architecture, Celerons have a low bus and smaller cache. Over time, Celeron processors have migrated to Pentium III and Pentium 4 architectures. Celeron chips are cheaper than Pentium processors.

Here are the most important similarities and differences between the Pentium 4 and the Celeron chips coming out today:

Core – The Celeron chip is based on a Pentium 4 core.

Cache – Celeron chips have less cache memory than Pentium 4 chips do. A Celeron might have 128 kilobytes of L2 cache, while a Pentium 4 can have four times that. The amount of L2 cache memory can have a big effect on performance.

Clock speed – Intel manufactures the Pentium 4 chips to run at a higher clock speed than Celeron chips. The fastest Pentium 4 might be 60 percent faster than the fastest Celeron.

Bus speed – There are differences in the maximum bus speeds that the processors allow. Pentium 4s tend to be about 30 percent faster than Celerons.

The major difference between Pentium and Celeron

Intel PentiumIntel Celeron
Pentium is an extended family of x86 microprocessorsCeleron is the Intel Family of low-end IA-32 and x86-64 chips designed specifically for low-cost PCs
Pentium III processors come with 512KB of L2 cache memoryCeleron processors use a 400MHz bus and come with the only 128KB of cache memory
Pentium III processors rely on a 133MHz system busCeleron processor is designed for a motherboard that uses a 66MHz system bus
The fastest processor in the Pentium line has a clock speed of 3.8GHzThe fastest Celeron processor has a clock speed of 2.8GHz
Multiprocessing is supportedMultiprocessing is not supported
Hyperthreading is supported in the Pentium processorsHyperthreading is not supported in Celeron processors
Pentium chips are relatively pricier than CeleronsCeleron chips are cheaper than Pentium chips