Celeron is a less powerful version of the Pentium, both the processors deliver performance and value at budget-friendly prices. Celeron processors are a cheaper alternative to Pentium II, III, and Pentium 4 microprocessors, especially when you seek value over performance. The Celeron processors are based on the same core as their Pentium-based counterparts, but lack marginally on the performance side such as lesser Level 2 cache memory, clock speed, and performance. That being said, the fastest Celeron processor operates at a clock speed of 2.8 GHz, while the fastest Pentium processor has a clock speed of 3.8 GHz. Compared to Pentium chips, Celerons have a low bus and smaller cache. So, if you’re going to use your computer for light work such as web browsing or word processing, then you might go for Celeron processors, but then it’s not recommended for above-average use.