Looking at the card, you're seeing the same design as the other HD 6990s we've looked at. Of course, the main difference is that the card carries different labeling and in this case it's HIS and that really nice blue that we see on most of their cards.
Taking a spin around the card finds our two 8-Pin PCIE power connectors at the back of the card, while closer to the front we've got our CrossFire connector and little switch to change the BIOS we're using. Connectivity comes in the form of four mini DP connectors along with a single Dual-Link DVI connector.
The HIS HD 6990 as you would expect just carries the reference clocks, which means 830MHz core out of the box and 5000MHz QDR on the memory front. In AUSUM mode the 4GB carries the same clock speed, while the core is bumped up to 880MHz.
Of course, our intention today is to overclock, so let's fire up MSI Afterburner, set the core voltage to 1.25v and see what kind of clocks we're able to achieve.
What we ended up with was a core clock of 960MHz and the 4GB of Memory came in at 5700MHz QDR. This is a nice overclock and should yield some strong performance gains over the out of the box performance.
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