Yes the coolermaster will out perform the artic cooling freezer slightly. I have a phenom IIx4 965be also, with stock cooling and i play crysis2 on ultra setting and my cpu temp. will max out at 49c. just idle it is 38c but I have an antec 300 case with five fans.
First of all thank you for the heads up on the Q-fan settings. I just got this motherboard from a friend, didn't really mess with it yet. Went into the bios set Q-fan to performance, restarted and it was silent, didn't really do anything for the temps it's idling around 36 right now, but this being an HTPC the reduction in noise is amazing! I'll have to give Crysis another go a bit later, see how the temps handle with Q-fan turned on. Thanks again!