How to determine my CPU FSB? Looking to buy new MOBO

Hey,

I am looking to purchase a new motherboard that can give me more overclocking options and support more RAM.

I was looking at:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

and I saw that it says, "Note: FSB800 CPU only support DDR3-800"

My current CPU is a Q9550, and I know when I go into the BIOS I see that the FSB is 333, but what does it mean by a FSB800 CPU - and how can I determine if my CPU is a FSB800 CPU or greater?


Thank you!