360° View - Dynatron Genius G950 Heatsink Information on Frostytech's test methodology is available here.
A single 120mm PWM fan is set within two aluminum fin towers on the Dynatron Genius G950 heatsink. The fan spins at 1600-1000RPM and draws power via a standard 4-pin PWM motherboard header. Four 6mm diameter copper heatpipes spread out evenly between aluminum fins to distribute heat. The heatsink's total height is 148mm, the distance from the CPU to the lowest fin is 40mm. Rather than straight aluminum fins, Dynatron manufactured the fins with a small 3mm dip at the center.
The fan floats freely in a ~40mm plenum between the two ~37mm wide array's of aluminum cooling fins. Each aluminum fin measures 0.3mm thick and is spaced 2.0mm apart. At the base is a small ~27mm tall extruded aluminum heatsink into which the four heatpipes are swaged.
The base of the Dynatron Genius G950 heatsink measures 38x53mm. Four 6mm diameter copper heatpipes are swaged into the aluminum base plate, and soldered in place. The flattened sections of heatpipe have been sanded flat, and wire-brushed smooth. The base is generally quite flat, but we prefer to see heatpipe direct touch base designs machined.

Base Finish and Flatness

Flipping a heatsink over to inspect the business end is often a simple indicator of overall cooler quality. More practically speaking, a heatsink is in many ways only as effective as the contact it makes with the processor - the flatter and smoother the better. Base finish is one of the criteria that Frostytech measure in the course of evaluating heatsinks, and it involves two distinct aspects. Surface Finish is the first; this is calculated with the aid of Surface Roughness Comparator that has a cross section of common machine surface finishes and their numerical surface roughness equivalents in microinches. The second is Surface Flatness. This is tested with an engineers straight edge or proven flat surface, in two axis.

The base of the Dynatron Genius G950 heatsink is pressed flat then lightly wire-brushed smooth. It has a surface roughness of approximately ~16 microinches. The base is generally quite flat in both axis.

Next up, Frostytech's acoustic noise level comparison.