TweakTown, like most others has more flaws in their test procedure than good. This kind of testing is smoke and mirrors .. and has little bases on empirical data. Maybe they don't know how to do accurate testing, or maybe they don't care. It really doesn't make any difference. The end result is data that has little meaning.
First flashing red and blue lights are CPU temp reading "accurate" to 0.01c.
What is the accuracy of air temperature going into cooler? How accurate/consistant are cooler mounts and resulting TIM heat transfer? Next is H110 being 3c cooler than H100, and H100 being 3.25c cooler than H220-X, with NH-D15 being 6.58c warmer while NH-D14 3.17c warmer than D15, but only 1.17c warmer than R1 Ultimate.. R1 Ultimate and NH-D15 are +/-1c different in accurate testing. H100 is very close to to same as well, not 4.08c cooler. Of course the differences will vary depending on how much heat CPU (heat source) is producing, but these kinds of anomalies show how flawed the testing procedures of most reviews are.
Without accurate basics we have nothing .. only wasted time.
How is system calibrated before (and after) each testing session?
What is the base air temperature?
where is it monitored?. (only relevent temp is air going into cooler)
how often is it recorded? (should be same as CPU temp)
What is the barometric pressure and humidity during each test session? (any change effects air's ability to absorb heat)
How many times was cooler mounted to establish consistency? (+/-1c margin of error between mounting is not uncommon)
And that's only for starters.
Many have tested the same top coolers and we have found the NH-D15, H100, R1 Ultimate, etc to be very close to equal in cooling ability (+/-2c), but H100 & H110 are much louder (26dBA).
It is extremely easy to pick apart the attempts of others like I did here, but it is extremely hard to setup a test system that gives accurate results.
I have tried.
Accuracy of +/-1c is about as good as it gets ..Edited by doyll - 12/29/15 at 2:57am