It looks like the GTX 780 Strix will not be the only graphics card in the new Strix brand lineup as ASUS just unveiled the new Radeon R9 280 Strix, with 3GB of GDDR5 memory.
Judging from the released pictures, the new ASUS R9 280 Strix graphics card should use the exact same DirectCU II cooler seen on the GTX 780 Strix, and the PCB looks a lot like the one used on the ASUS R9 280 DirectCU II. This new version of the DirectCU II offers 0 dBA cooling, when the GPU is under 65° and it only starts the fans once the temperature is over that point.
The new ASUS R9 280 Strix graphics card also features a factory OC. The GPU is clocked at 980MHz, while memory is clocked at 5.20GHz. It is based on a 28 nm Tahiti GPU, and it features 1792 GCN Stream Processors, 112 TMUs, 32 ROPs and a 384-bit memory interface. The new graphics card is compatible with DirectX 11.2, OpenGL 4.4 and AMD Mantle.
Unfortunately, ASUS did not reveal pricing nor the release date for this board.
Source:
Techpowerup.com