Originally posted by: tgenius
Seems like the Q6600 is almost better then the Q9300 as the Q6600 has 8MB vs 6MB on the Q9300, now the Q9450 is a different story
Q9300 is still faster overall, and clock for clock. For the casual overclocker who wants a moderate overclock to around 3.2GHz, I would recommend the Q9300 over the Q6600, as it runs a lot cooler, and the low multi / FSB limitation shoudn't really be an issue until you reach 450FSB+ on most P35 boards.
In terms of heavy overclocking, a Q6600 has the potential to perform slightly better, but only when overclocked in excess of 3.6GHz. It seems even with a good X38 mobo, the FSB wall is around the 470MHz mark, so a Q9300 won't go far beyond ~3.5GHz. As the Xbitlabs article shows, at 3.5GHz a Q9300 is equal to or slightly faster than a Q6600 @ 3.6GHz.