As you can guess, it is very similar to the ATI branded card, but HIS has a few tricks up its sleeve to differentiate the Excalibur from the rest of the pack. The first, and most obvious change, is an upgraded cooler on the GPU and RAM sinks. The second and not so obvious change is the fact that the default RAM speed for the Excalibur is 650MHz; reference specifications for the card only call for 600MHz. HIS accomplished this mild overclock by using some faster rated BGA RAM modules and some stylish sinks



Link: GruntVillE