Connect3D X800 GTO
 

When testing this card which is based on R423, I noticed that clock for clock this card is faster than the Sapphire based R480. I tested this thoroughly to make sure there wasn’t a driver issue or incorrect setting in place. I feel confident enough to state that R423 based X800 GTO’s are faster than R480 based ones clock for clock.

Link to the review: http://www.pureoverclock.com/article24.html