According to Powercolor, the new Liquid Devil graphics cards use a custom PCB with a 14+2-phase VRM design as well as additional power delivery with triple 8-pin PCIe power plugs. This also allows Powercolor to bring a decent 100MHz factory-overclock over AMD reference design. Both also have dual BIOS with a switch that can be easily used to move from overclocking to high-efficiency clocks.
Interestingly, Powercolor has also included a "Custom Loop Coolant Colour pack" with EK-Cryofuel.
Unfortunately, Powercolor did not reveal any details on the price but hopefully, we'll get more information as these are scheduled to be available on retail/e-tail shelves as of March 15th.