The MSI P35 Combo Platinum does very well here - at stock, it even beat the X38 boards, but when it is overclocked, it is beaten out by the two X38 based boards when overclocked. At stock, DDR2 was slightly faster then DDR3.
Content Creation
The competition is tight at stock speeds, and DDR3 edges out DDR2 - however the X38 based boards win here.