PC doesn't know what video card I have?

So I recently just put in a 7970 replacing a 6870, and everything video game wise is working as expected. But when I go to programs like Can I Run it and CPU-Z, it still says I have a 6800 series card. However, CCC and GPU-Z say I have a 7900 series. I re-downloaded the 12.11 drivers to see if it fixed the problem, it didn't. Now it's not a serious problem, and it does not appear to affect anything else, but I would like to know why it's happening. Any ideas?