The Mighty Roaring Cube: CoolerMaster HCC-002
The cube-shaped HCC-002 is made entirely out of copper. And that has an effect on its weight, too. The HCC-002 weighs in at 506 grams. That's quite a bit heavier than the maximum weight recommended by AMD (300 grams). The operating noise level of the HCC-002 is everything but prissy. 67 dB (A) pound against your eardrums.
In terms of cooling capabilities, the HCC-002 outstrips its weaker relatives made of aluminum or a combination of aluminum and copper.
The advantage of using this particular material is made especially clear on extremely powerful CPUs. Whether it's an Athlon XP 2000+ or a 1400 Athlon, the temperature won't rise above 60° Celsius.