I'd just about guarantee that the LCD display is smaller than the fan on that AMD cooler.
Besides which, while there is no "hard, fast" rule regarding the distance from the center of the CPU socket to the first DIMM slot, the distance does matter, because shorter termination lengths translate into less signal deterioration, so just about every board manufacturer tries to use the shortest distance while also allowing for a sufficient clearance for coolers. For ATX boards, that distance is so close between all models released in the last six or seven years that it would be extremely uncommon to find one that was significantly different enough from every other to say it was definably different. Besides which, it's unlikely ASUS would shoot themselves in the foot by putting out an AIO with an inability to fit on what has been one of their most popular boards over the last five years.
My advice would be, just get it. If it doesn't fit, return it. I seriously doubt you'll have fitment problems though on an ATX board. On a microATX or ITX board, different story maybe.