With XFX797A TDBC in Crossfire the reviews are touting the high frame rate in the 2560 resolution. Searching the 27" market have really only found two suitable monitors; Dell Ultrasharp 2711 and the Samsung Syncmaster 27A850D. Do any of you own one of these? Is the image at this resolution substantially better than 1920X1200 in DX11 gaming applications?