"We've just had a look at the HIS HD 6970 Turbo and I then realized that we hadn't even had a look at the reference HD 6970 2GB from HIS. It's not that we had forgotten about it, but we wanted to give the card the same treatment as the GIGABYTE HD 6950 2GB we have just looked at.
Since we had looked at the HD 6970 by itself as well as in Crossfire, the next thing to do was see what happens when we overclock them. With the holidays it seemed that MSI were a little slower than normal when it came to updating Afterburner with voltage support, so unfortunately we're looking at the HIS HD 6970 in this regard a little later than we would normally."
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips