Like all of Nvidias modern graphics cards, the GTX 1080 Ti uses GPU Boost to set its base clock (1480MHz), boost clock (1582MHz), and max boost clock (1900MHz). How high the GPU actually clocks depends on the quality of the chip and the enclosure its installed in. Toms Hardware and Eurogamer both imply that the GPU can hit a max boost clock of 1850-1900MHz, but it cant hold it very long. Anandtech reports average clock speeds from 1620MHz to 1746MHz depending on the game. Building a custom water loop changed that. By drastically lowering the temperature of the GPU, THG was able to significantly increase its average clock rate, allowing it to hit a stable and continuous 2.1GHz. So how did that impact performance? The gains here are fairly nominal, to be quite honest. The games frame rate definitely improves, but only by ~20% compared with a 50% increase in GPU clock (from 1.4GHz to 2.1GHz). This is just one title and not every game responds equally well to GPU clock increases there are

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