Sapphire HD 4870 Toxic (picture: donanimhaber.com) [Source: view picture gallery]
According to that, the GPU is running at 780 megahertz and the memory at 2,000 megahertz (512 MiByte GDDR5). The cooling solution is called Vapor Cooler-X and that stands for a heatpipe construction. The remaining specifications match the default values of the HD 4870.