There are 52 fins in total on the CNPS6500Cu model, and each fin is about 53x68x0.5mm in size. Altogether the heatsink weighs in at 910grams, making it one very heavy cooler. At the circumference of the fins, the tips are spaced roughly 2mm apart for good airflow.

Heatsink Base:

Zalman have always finished their heatsinks with very smooth flat bases. Since the fins are wider than previous Zalman heatsinks, we noticed that is important not to drop the heatsink upside down on a hard surface. Doing so may very slightly dislodge one or two of the fins so they stand up above the surface and affect proper mounting. Generally speaking, only a very small amount of good quality thermal compound should be applied. The entire base area measures 71x94mm