It depends what your PSU is, I looked back and seen your CPU is a Phenom 9750, so I don't think it would be bottlenecked MUCH (i've been wrong about this before.)
Look around on your power supply and see if you can find somethings along the lines of "MAX. xxxW", "+12V1 xxA", or "+12V xxA".
Write those on a piece of paper and post them.