Water-cooling solution brand Asetek, which is popular with the OEMs, demonstrated a prototype GPU water-cooling solution for the NVIDIA GeForce GTX 580. The prototype uses an off-the-shelf GTX 580 card branded by PNY (doesn't necessarily mean that Asetek is designing this for PNY). The cooler could be to be a pre-assembled GPU water block loop that replaces the aluminum channel heatsink in the reference NVIDIA cooler. The NVIDIA reference blower is retained to cool other components such as memory and VRM, probably at low speeds. Asetek put its GTX 580 prototype to test, by overclocking the PNY GTX 580 Enthusiast Edition to 995 MHz core, 1846 MHz CUDA cores, and 1100 MHz (4.40 GHz effective) memory. At these speeds, the GPU was able to score 1285 points at average framerate of 51 FPS in Unigine Heaven 2.0 benchmark. Watch the video embedded after the break for details.