Better temps and with that you get better stability.
Two flys with one pounch 8)
I think you can put a zalman cooler for graphics on dfi board chipset.
Passivly you have much better temps as long as you have one or two fans moving air over the heatsinks.
I made my own heat sinks from a bunch of P133's for a 5700le once, I saw a stable 10 fram increase.