Trusted Reviews have taken a look at the 7600 GT and ATI X1800 GTO.

During CeBIT, while Gordon and I were out in Germany getting frosty
toed and weary eyed, NVIDIA was nice enough to launch seven products on the same day. While Benny did an excellent job covering the 7900 GTX, today it's the turn of the 7600 GT - NVIDIA's new mid-range card. As much as we all like to whet our appetites reading about high-end kit for financial reasons,
this is the card that most in the market for a graphics board will be thinking
about more seriously.

NVIDIA 7600 GT vs. ATI X1800 GTO