The first diagram shows the noise readings for all fans tested today:
ThermalrightTY-140 stands out noticeably as it demonstrates remarkably low noise levels. Although at up to 700 RPM speeds it does have quite a few competitors, such as very quiet Noiseblocker and Nanoxia. After TY-140 we see a tight pack of five fans: Scythe Slip Stream 140, Noiseblocker NB-BlackSilentPRO PK-2 and PK-3, Nanoxia DX14-1200 and Revoltec AirGuard 140. Evercool Red Scorpion, Deep Cool UF140 and Noctua NF-P14 FLX fans have even worse acoustic readings. And the loser of this test, as you already know, is the 140 mm fan from Xigmatek.
The next graph describes the dependence of the noise on the airflow:
Here we have one outstanding leader: Thermalright TY-140. I would also like to mention Scythe Slip Stream 140 and Thermalright X-Silent 140. After that all fans are mixed together, so it is very hard to single out any fan here. Only two products are among the last ones: Evercool and Xigmatek fans.
I believe that the charts showing airflow readings taken at 36 dBA, which is the level of subjective acoustic comfort, are much more illustrative:
The charts at very low noise level of 33 dBA are also very interesting:
There are the same three leaders on both diagrams: Thermalright TY-140 that dashed far ahead of the others at 36 dBA, Scythe Slip Stream 140 and Thermalright X-Silent 140. They are followed by a group of five fans that generate almost the same airflow at 36 and 33 dBA. I could say that the sixth fan, Noctua NF-P14 FLX, closes the group, but this “bundle of super-technologies” is way too expensive to be included into this group. The last ones in this race are again solutions from Evercool and Xigmatek.
Now let’s check out the maximum power consumption diagram:
Here we can single out three groups of fans. The first one includes three fans with extremely low power consumption readings (below 1 W): the junior Noiseblocker and Nanoxia fans as well as Thermalright X-Silent 140. I am sure that they will be perfect for “green” users, as they are truly economical. The second group includes five fans: NB-BlackSilentPRO PK-2, Revoltec, Thermalright TY-140, Noctua and the top Nanoxia model – they consume no more than 1.5 W of power, which also makes them very energy-efficient. The remaining fans consume much more Scythe Slip Stream 140 being the most energy-hungry of all.
The next diagram shows the fans’ startup voltages. I would like to remind you that we provided the average of the two readings taken off both identical (with the exception of Noctua fan, which we only had one). Although in most cases there was hardly any difference between the two fans:
Scythe Slip Stream 140 (SM1425SL12H) fans boast record-breaking startup voltages of 2.8 V. But, as you probably understand, this is not true for the entire fan lineup. Besides Scythe, there are three other fans that can startup at voltages below 5 V: all three Noiseblocker products, both Nanoxia fans and the Red Scorpion from Evercool.Xigmatek fan starts at 5 V. and the worst ones this time are Noctua and Thermalright X-Silent.
In conclusion I would like to offer you a comparative diagram showing the pricing of the tested 140 mm cooling fans:
I am sure no comments are necessary here.
As for the comparison of the fans performance on a processor heatsink, like the one we performed in our previous roundup, we believe that these tests will simply help identify the most optimal fan for a specific heatsink, or a pair of heatsinks. Heatsinks with high or low fin density will require fans with different specifications. Moreover, there are some other factors that should be taken into consideration when selecting the best fan for specific heatsinks. So, since we cannot cover all the popular heatsinks in one single article, we decided not to run a test like that at all this time.