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.
We had to increase fan speed up to 63%, or 1950rpm, to hit 40dBa of noise, at which point GPU thermals peaked at just 55.7C, with the hot spot at 67C. Both metrics are about 2C cooler than Nvidia's Founders Edition, so the Twin X2 is the more efficient cooler, but there's not much in it.