360° View - Arctic Cooling Freezer 64 Pro Heatsink Information on Frostytech's test methodology is available here.
	The Heatsink Fan: The fan is probably the most important aspect of the Freezer 64 Pro heatsink. It is suspended by four posts which connect to the motor body. The 7-bladed impeller spins freely, and utilizes Arctic's Ceramic Bearings. Fan speed sits at 2200RPM, and so airflow is consequently 40 CFM. The fan draws power from a standard 3-pin motherboard connector that supports RPM monitoring. While it appears as though the blades are just waiting to get caught up in loose wires, there is enough fan frame around the impeller to protect them satisfactorily.
	Heatsink Top: The 42 aluminum fins all measure 104 x 58mm in size. Each fin is 0.3mm thick and spaced 1.5mm apart. This is a fairly open fin-pitch, but the reduced air resistance allows lower fan speeds to be utilized. The bottom three aluminum fins are curved along one side to direct airflow down towards motherboard components. The Freezer 64 Pro's clip can also be adjusted depending on the orientation of the CPU socket. The clip rotates 90 degrees once it is partially disassembled. The heatpipes stand about 120mm high.
	Heatsink Side A: The three 6mm diameter copper heatpipes intersect the 42 aluminum fins in a very close arrangement. A more staggered configuration might have improved heat distribution to the aluminum fins, but would have also created extra air resistance. The heatsink retention mechanism is well designed, and applies pressure at the center of the heatsink base, not along the outer edges. We've seen far too many heatsinks which do not apply the load at the center of the heatsink, and this can cause problems if the base is not sufficiently rigid. Arctic Cooling have done a good job designing the Freezer 64 Pro in that respect.
	Heatsink Side B: The rear of the Freezer 64 Pro heatsink is essentially identical to the front. Note the curved fins at the base.
	Heatsink Base: The heatsink comes with a pre-applied patch of grey thermal compound. The copper base plate measures 36 x 33.5mm in size, which is smaller than the 37.5 x 37.5mm integrated heat spreader of AMD Athlon64 processors. The base is perfectly flat, but has a fine roughness to it from the face milling operation that Arctic Cooling insist is intentional. The surface roughness is ~48 microinches.