What is the best cpu for the Asus P5L-MX (socket 775)

[hotcore]

I recently got the Asus P5L-MX,and i want to upgrade to the best cpu that is compatible with this motherboard
What is the best cpu for that motherboard?

 

[GhislainG]

The best CPU probably is the X6800: https://www.asus.com/Motherboards/P5LMX/HelpDesk_CPU/#