Holy stuff, you're right.
You'll need some serious horsepower on whatever computer runs that.
"The picture was made with the Canon 5D mark II and a 400mm-lens. It consists of 1.665 full format pictures with 21.4 megapixel, which was recorded by a photo-robot in 172 minutes. The converting of 102 GB raw data by a computer with a main memory cache of 48 GB and 16 processors took 94 hours. With a resolution of 297.500 x 87.500 pixel (26 gigapixel) the picture is the largest in the world."
According to my calculations, you would need roughly ten million one hundred fifty two thousand times more computing power to convert that in 1/30 second (or at 30 frames per second). Of course that isn't even taking into account the fact that this was raw data and not rendered by the computer.