Tady jsou odakzy, porovnáš na 1. pohled...
Celeron G440 - http://ark.intel.com/products/58667/Intel-Celeron-Processor-G440-%281M-Cache-1_60-GHz%29
Pentium E6700 - http://ark.intel.com/products/42809/Intel-Pentium-Processor-E6700-%282M-Cache-3_20-GHz-1066-FSB%29
Celeron 2500 - http://ark.intel.com/products/27179/Intel-Celeron-Processor-2_50-GHz-128K-Cache-400-MHz-FSB