HardOCP checked out the AMD Radeon R9 295X2 Video Card
A quote from the article:
The new AMD Radeon R9 295X2 contains two Radeon R9 290X GPUs on a single video card package that utilizes liquid cooling for the best GPU performance. We compare it to NVIDIA's competitive configuration and see just how well it performs at both huge 4K resolutions and in an Eyefinity setup.AMD Radeon R9 295X2 Video Card Review @ HardOCP