Gigabyte G-Power 2 Pro
 

Gigabyte recently announced its new G-Power 2 Pro CPU heatsink which adds additional airflow to the CPU Mosfets. This airflow helps to provide additional cooling for those Mosfets, making it easier for the motherboard to provide stable power for hungry CPUs. The G-Power 2 Pro has some nice features, including a very quiet 120mm fan.
http://www.techpowerup.com/reviews/Gigabyte/GPower2Pro