be Quiet announced they will be revealing two new low profile coolers at CES 2015, the larger Dark Rock Topflow and the miniaturized Shadow Rock LP.
The Dark Rock pictured above will be good for smaller builds which require a powerful processor as opposed to a BayTrail system and has enough clearance for sockets which are tight up against your RAM slots. If you sacrifice the benefit of the second fan located on the bottom of the heatsink you should be able to fit RAM with larger sized heat spreaders.
For systems squeezed into a tiny case the Shadow Rock LP is a great choice, 4.3" of height with the fan attached will allow you to add third party cooling to tiny systems (yes, the picture has them reversed). You will have to go with low profile or horizontally mounted RAM as the clearance is very tight but this design makes more sense than to reduce the size of the heatsink below 120mm.
Follow all of our coverage of the show at https://pcper.com/ces!