Having trouble running games at 30fps

[JMC47]

That's really strange, Paper Mario: The Thousand Year Door is what I'd consider a very light game. I'm guessing this may be more along the lines of the 7xxx Radeon cards going into sleep than the processor being too slow.

I ran it single core on my core i5 760, for instance, so a modern FX in dualcore at 4.1 GHz should be more than enough for it.