Cooling Efficiency Tests
The results are summed up in the diagram and table below:
The first block of results obtained with the coolers tested in their default configurations presents us with a great surprise: finally there is a new cooler that is just as efficient as the undefeated Thermalright Archon! And it is NZXT Havik 140. Moreover, in bare numbers, we can state that Havik 140 outperforms its rival by 1°C at 1000 RPM, while at all other speeds the two coolers are equally efficient.
When tested with two TY-140 fans, Archon regains its leadership, being especially successful at 800 RPM, where its advantage reaches 5°C. But this is the only result like that, because in all other modes NZXT cooler is only 1-3°C behind, which is great. I would also like to say that with two Thermalright TY-140 fans, the cooling efficiency of Havik 140 doesn’t improve compared with the configuration using its default NZXT fans. And by replacing the fans with 120 mm TR-FDB ones, we do improve the performance, but only at higher fan speeds and only at the expense of acoustic comfort.
Well, since Havik 140 and Archon have such similar efficiency, let’s check what they are capable of during maximum CPU overclocking. Both coolers managed to squeeze all juices out of our six-core Intel Core i7-980X Extreme Edition processor and reached the maximum frequency of 4.5 GHz at 1.475 V Vcore, although Archon provided 1°C lower maximum temperature of the hottest processor core:
NZXT Havik 140 (2x1210 RPM)
Thermalright Archon (2x1290 RPM)
In reality, these two coolers are equally efficient. Although we have to keep in mind that Archon got a free boost in the form of a second TY-140 fan, which is not included with the cooler and needs to be purchased separately. And if you equip NZXT Havik 140 with a pair of Scythe Slip Stream 140 fans at 1710 RPM…
then the maximum CPU temperature will drop by another 4°C:
and for the ultimate satisfaction you could use Havik 140 with fans supporting manual or PWM rotation speed control in 700-1800 RPM interval.