Articles: Cooling
 

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Design and Functionality

The nickel-plated Dracula has 12 copper heat pipes that go out of the copper base and pierce the two individual heatsink sections.

The pipes are 6 millimeters in diameter. They go out of the base, six to each side. There is a slim auxiliary heatsink above the cooler’s base.

The bigger section consists of 53 aluminum fins whereas the smaller section, of 31 fins. The fins are 0.45 millimeters thick and soldered to the pipes 2 millimeters apart from each other.

The whole heatsink measures 254x100x44 millimeters. The following drawing shows the details:

The heatsink is quite heavy at 556 grams. The fins are shaped and positioned in such a way that the top of the heatsink has a variable height.

This is supposed to reduce resistance to the air flow and keep the cooler efficient at low speeds. The heat pipes pierce the heatsink in a straight line. They are spaced 9 to 11 millimeters from each other.

The fins, heat pipes and cooler base are all soldered to each other, so the whole arrangement is very robust and solid.

The pipes are laid in the base 1 to 1.5 millimeters from each other.

 

The contact spot of the revised Dracula has a round protrusion which is meant to touch the low-profile die of AMD’s new GPUs. The original Dracula had a mirror-like base, but the new revision shows a rather mediocre finish:

It is perfectly flat, though, so we’ve got an ideal thermal grease imprint on our AMD Tahiti chip:

By the way, here’s a photo of the dismantled base of the cooler from a Chinese site. It proves that the Dracula really has 12 heat pipes:

It’s hard to tell if this design is more efficient than six pipes but at least we can make sure the pipes are indeed soldered to the base.

 
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