knowom :
Wait why doesn't this make sense for larger systems if it cools that well why not make a full tower design of one of these. Hell one of these in a full tower design could probably take passive cooling into new league of it's own.
A full tower design would not give much added benefit to a flat vapor chamber directly over the CPU since most of the heat would already be dissipated in the first few centimeters off the fin base. If you want to propagate heat through a large fin stack, you need heat pipes of some sort.