German PC liquid-cooling experts Aqua Computer launched the AquaGraFX GTX 680, the industry's first full-coverage water block for NVIDIA's newly-launched high-end graphics card. Its primary material is exposed-copper. The coolant channel not only passes through the central portion covering the GPU and memory, but also the tail portion, where heat is drawn from the VRM area of the graphics card.
At the portion that's right about the GPU, the coolant channel is densely ridged, to increase surface area of dissipation to the coolant. To top if off, Aqua Computer used a brushed metal cover. It has a modular inlet/outlet design that suits both standalone and SLI systems, including 3-way and 4-way ... »read more

More at: techPowerUp! Add additional source