original_query: What was the price difference between GTO boards and 7900 GTX boards at the time of launch?
query: What was the price difference between 7900 GTO boards and 7900 GTX boards at the time of their launch?
answer: At launch, 7900 GTO boards sold for around US$250, while 7900 GTX boards cost over US$400.  The price difference was approximately US$150.