Sapphire Radeon HD 6990 4GB Video Card

We're going to keep this short and sweet because we know all you really care about is the results. To quickly summarize exactly what we're doing here today, though, we're firing up the latest beta build of MSI Afterburner and cranking even more volts through the two GPUs that are placed on that single PCB.

We've of course already looked at the Sapphire HD 6990 4GB in all its out of the box glory so we won't be covering any part of the card itself here today. Instead we'll get straight into the overclocking side of things and then just get straight into some testing.