With the system running at the stock settings the Killer Whale Premium is keeping our Intel Core i7-930 at 56.25*C, 2 degrees behind the first place Prolimatech Super Mega. The Killer Whale Premium is also performing with the Noctua NH-C14 with the Low Noise (LNA) adaptor, but is significantly louder than the Noctua.
Turning the heat up a bit with a mild overclock the system now running at 3.5GHz the Killer Whale Premium is still doing ok. Cooling the Intel Core i7-930 to 63.25*C, 3 degrees behind the Super Mega. The gap to the NH-C14 has widened as well. This time the Killer Whale Premium is 1.75 degrees behind the NH-C14 with the LNA adaptor.
Pushing the system to 4.0GHz the Killer Whale Premium now cooling the Intel Core i7-930 to 76.25*C, 6.75 degrees behind the Super Mega and 3.25 degrees cooler than the stock Intel heatsink running at stock settings.