Difference between Celeron and Normal Pentium

I would like to what is celeron. I have been seeing this since petium 2. So what is common in all celeron.Even 2.4Ghz is called celeron for few.

 

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.
When you sort all this out and compare the two chips side by side, it turns out that a Celeron and a Pentium 4 chip running at the same speed are different beasts. The smaller L2 cache size and slower bus speeds can mean serious performance differences depending on what you want to do with your computer. If all you do is check e-mail and browse the Web, the Celeron is fine, and the price difference can save you a lot of money. If you want the fastest machine you can buy, then you need to go with the Pentium 4 to get the highest clock speeds and the fastest system bus.

Hence the bottomline is that celerons are meant to be low-end processors.
similar to the sempron in the amd platform
however, when going for a low-end system, sempron will always ofer better performance than a celeron.....even if its lower priced.
hence u will save money and even get better performance, so the celeron is in a nutshell useless!!!

 

I have Pentium 1.5Ghz 256kb L2 cache. It is Pentium 4 processor. Now a days u will get 2.2Ghz 256kb l2 cache which is called celeron. So what is that mean then.

If today 1Mb L2 cache P4. If tomarrow new L2 cache is coming that is around 4Mb l2 cache. Then the latter is called celeron is it so??

 

it depends upon wht intel wishes to do...
its quite probable tht when it further increases the l2 cache mem on the pentium processors it will offer a low-end version of tht which wud b called the celeron but with a lower l2 cache.