Following on from our stock thermal and acoustic testing, here we re-test the operating temperature of the GPU, but with noise levels normalised to 40dBa. This allows us to measure the efficiency of the overall cooling solution as varying noise levels as a result of more aggressive fan curves are no longer a factor.
As the fan curve is so conservative, we had to increase fan speed to 2030rpm before hitting 40dBa of noise. This means the fans are effectively spinning twice as fast as default behaviour, so it's no surprise that thermals dropped hugely – down to just 52C on the edge, and 74-75C junction temperature depending which BIOS was used. In terms of cooler efficiency, the Nitro+ is clearly streets ahead of the reference design.