graphics card/processor help!

[nasomi]

Can someone tell me how I have a pegged single core here?

http://i.imgur.com/ZjVDp.jpg

Because I see balancing of cores and no single core pegged, yet I see pegged gpu. Something tells me that those that say the cpu is a limiting factor don't monitor their cpu or gpu usage while playing.

For the record, I have never seen a single core pegged, let alone all the cores pegged, and I have my task manager up all the time, because it's pretty easy with 3 monitors.