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.
We love nothing more than MSI Afterburner for our overclocking which gave us the ability to move to a core voltage of 1.25v. This is up from the default 1.12v you get out of the box, and up again on the 1.175v you get in AUSUM mode.
What that extra voltage helped us do was get the card running at 1GHz on the cores and 5400MHz QDR on the 4GB of memory. Unfortunately for the card to run stable we had to crank the fan up to 100%. Still it was a sacrifice my ears where willing to make.
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