Hardware Canucks posted a review of the ASUS M4A78T-E 790GX AM3 motherboard.

Speaking of new paths, in mid-February AMD launched the new Socket AM3 platform which finally brought forth official support for DDR3 memory. Along with this new socket, AMD launched three processors in the form of the Phenom II X3 710, X3 720 Black Edition, and the X4 810, with the promise of higher-end quad-core models to come (X4 925, X4 945, X4 955). Since the Phenom II's feature an integrated memory controller, the DDR3 support was added there so the actual AMD chipset didn't need any fundamental changes.

ASUS M4A78T-E 790GX AM3 Motherboard Review