Depends… its a very capable 1080p card with extremely good power efficiency.
There is the overclocked “xt” version that is generally considerd bad value as it loses the power efficiency aspect and costs significantly more for only little extra performance.
You are overlooking the idle power-consumption. A 7600 basically idles at 5W or so (and turns off all fans). Now think about how many hours you surf the web etc. with your PC Vs. actual gaming and you can see that this makes a big difference.