The 120mm PWM fan on the Zaward Gyre heatsink spins at 1000-2000RPM. Power is supplied by a 4-pin motherboard fan header. Three 8mm diameter copper heatpipes are packed one next to the other at the base and extend rather closely up through the 110mm tall fin section. Each aluminum fin is roughly 0.2mm thick and spaced 2.5mm apart. The central hole through the center of the Gyre is 40mm across.

The bulk of the Gyre heatsink is elevated 40mm above the CPU, the heatsink itself stands 149mm tall. In the photo's above you can see what the heatsink looks like with and without the fan shroud, from the same orientation. The aluminum base block that supports the three copper heatpipes measures 14mm thick. The 8mm copper heatpipes are spaced a close 3mm apart (on edge) from on another as they pass through the aluminum fins.

The three exposed heatpipes on the base of this heatsink are perfectly flush with the surface. The base of the Zaward Gyre measures 35x42mm in area. From the top looking down you get a better sense of just how uniqe the Zaward Gyre heatsink really is. The four circular holes are for the screwdriver to access the Intel 775 mounting screws from above.