what is celeron
1 Core-The Celeron chip is based on a Pentium 4 core. 2  Cache-Celeron chips have less cache memory than Pentium 4 chips do. 3  A Celeron might have 128 kilobytes of L2 cache, while a Pentium 4 can have four times that. 4  The amount of L2 cache memory can have a big effect on performance.