ASUS HD6970 DirectCU II 2GB vs VTX3D HD6970 2GB X-Edition?

Which performs better? Thanks|||You can get far better performance from the ASUS one if you overclock it - the DCU II cooler is epic so this will be easy. ASUS also make higher quality graphics cards than VTX3D.|||either or. isn't ASUS the better brand.|||VTX3D HD6970 2GB X-Edition has a faster core clock