The Intel Core 2 Quad Q9400 has four processing cores running at 2.66GHz, 6MB of shared L2 cache, and a 1333MHz Front Side Bus (FSB). If you are thinking of building an Intel LGA775 platform this processor should be at the top of your list. Read on to see how the Intel Core 2 Quad 9400 does against the other 25 processors it was benchmarked against.