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Cooling Efficiency Tests

The obtained results are summed up in the following table and diagram:


Click to enlarge

Obviously, these two super-coolers are very close in cooling efficiency. Nevertheless, despite pretty high heatsink plate density, Thermalright Silver Arrow proves more efficient than Noctua NH-D14 when tested with default fans (do the petals really help?). The difference is 3°C in quiet mode, 2°C in medium speed mode and 1°C at maximum fan speed. I have to say that when we installed Thermalright TY-140 fans onto the Noctua heatsink, its efficiency didn’t improve compared with what we saw with default fans, which indicates clearly that both companied did a good job finding the best fan for their product. The use of high-speed Scythe Slip Stream 140 also didn’t substantially affect the cooling efficiency of either Silver Arrow or NH-D14.

In conclusion to our cooling efficiency tests we would like to see how far they allow overclocking the processor with their default fans in place and working at their maximum rotation speed:


ThermalrightSilver Arrow
(2 TY-140 1280 RPM)


NoctuaNH-D14
(NF-P12 1340 RPM, NF-P14 1240 RPM)

As we see, we managed to achieve the same CPU frequency in both coolers – 4488 MHz with identical Vcore setting of 1.46875 V. However, Thermalright Silver Arrow ensured slightly lower peak CPU temperature, than Noctua NH-D14. Anyway, both coolers are simply excellent, no doubt about that.

Acoustic Performance

We will measure the noise from 140 mm fans of the today’s testing participants using our new measuring methodology, which will be described in detail in our next article. Here are the obtained results:


Click to enlarge

As you can easily notice, Thermalright TY-140 fan is way quieter than Noctua NF-P14 FLX. And the difference is so significant that at the level of acoustic comfort when both fans produce the same amount of noise the difference in rotation speed reaches 200 RPM in favor of the Thermalright solution. From the subjective prospective I would also like to point out not the low level of noise from TY-140 that much, but the pleasant sound it makes: it doesn’t rattle, crackle or whistle. There are no acoustic parasitic additions of any kind. At up to 800-850 RPM we can only hear the sound of flowing air creates by the fan blades. In other words, while Thermalright Silver Arrow didn’t really outperform Noctua NH-D14 that much in cooling efficiency, but when it came to acoustics, Silver Arrow was indisputably on top.

 
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