One thing to keep in mind about the Noctua NH-C12P SE14 is that while it's designed to offer you high end cooling (which it does) it's also designed for extra compatibility with a wide range of enclosures. I think Noctua have done well with it. The NH-C12P is not in of itself a new heatsink, but the SE14 version adds Noctua's excellent 140mm fan which provides very quiet performance indeed. The fan features Noctua's Vortex Control Notches which seem to work well in keeping the noise levels down and CFM moved high. All in all it makes for a great combination. Compared to some other proper tower based setups it does trail a little behind, but it's not by much and if you don't have the room for a tower, you will probably find that despite it's size the NH-C12P SE14 will fit.