German overclocker Der8auer has created the world's first water block for the RTX 5090 Founders Edition, one of the best graphics cards. Der8auer showed off a prototype his team built on YouTube that is designed (primarily) to fit the RTX 5090 FE PCB and its sub-components. The block reduced temperatures from 73.8 degrees Celsius to 43.8 degrees C on the GPU core.
The prototype Der8auer's team built was entirely made of copper, including the cold plate and exterior cover plate. The block was designed as a proof of concept and, as a result, has no pleasing aesthetic touches, such as RGB lighting, save for a see-through glass cover on the top that allows visibility of the liquid flowing through the cold plate.
