Gigabyte gave a presentation of the new 3D UEFI user interface for its X79 motherboards, you can check it out at AnandTech.
Gigabyte is trying something a bit new with its X79 UEFI: a simplified "3D" UI. Instead of navigating through lists and sublists of options, Gigabyte's new 3D BIOS interface gives you a picture of your motherboard with a few predefined, highlightable sections. You can hover over and click on the SATA ports for example to bring up a list of SATA related configuration options. The same applies for rear IO, memory, PCIe, voltage regulators and naturally the CPU socket.
The advanced mode will still remain, Gigabyte is simply using 3D BIOS to make configuring your motherboard easier for those users who are less comfortable with the process.