GeForce RTX 3080 Cooled with a Server Cooler: Performance Soars and Power Consumption Drops

We have already seen the most absurd solutions for cooling CPUs, from ice machines to direct spraying. This time, however, modder TrashBench focused on a GPU by adapting an AIO liquid cooling system designed for server processors.

For this occasion, he used an Arctic WS360 360mm solution intended for Threadripper and Xeon CPUs on an NVIDIA GeForce RTX 3080. Needless to say, the result was interesting, given that the cooler is capable of handling a heat generation significantly higher than that of consumer CPUs or GPUs.

The Arctic WS360 system is designed for high TDP workstation CPUs and integrates a copper cold plate that is over twice the size of consumer AIO coolers. This feature proved to be crucial: the large surface area completely covers both the GPU die and the GDDR6X modules, positioning itself accurately among the VRM rows.

Of course, the size of the copper base prevented the use of the standard holes on the graphics card, so TrashBench had to design and 3D print a custom mounting system. And no, it wasn't as straightforward as one might think: the modder had to go through several attempts before managing to create the right adapter.

However, in terms of temperature, the results were probably beyond the expectations of the modder himself. In tests with 3DMark Time Spy, the GPU core temperature dropped by 26°C, while the hotspot value decreased by a remarkable 39°C. The most significant finding, however, concerns the memory: the VRAM temperature dropped from 104°C to about 50°C, achieving a reduction of 54°C.

It's worth noting that these significant temperature variations have allowed for considerably wider overclocking margins. After all, compared to the past, the overclocking ranges of GPUs have been reduced precisely due to increasingly stringent thermal limits that simple air cooling sometimes cannot cope with.

By applying a slight overclock, the core gained +195 MHz, with an average performance increase in games of around 9% compared to the standard air configuration. This is not an insignificant value, especially considering how tight the margins are for today's graphics cards.

Thus, the project highlights a fundamental aspect of modern graphics cards: the reduced overclocking margins are not due to limits of the chips or their respective architectures, but rather to thermal management, which, due to increasing power consumption, has become more complex and stringent.