That is a very valuable little tidbit of information....
those two blocks are well though out... the first one looks like a micro-channel concept.... where the idea is to divide the liquid up into as small a particle as possible, and then introducing the heat to it individually, thus getting maximum heat transfer per volume moved...
the second one looks like it's going for the brute force method... using velocity and surface shaping to generate a violent and turbulent flow-pattern , also very effective and of the two, probably the easiest one to make...