Only this time, Nvidia is comparing apples and oranges, as it compares ATI's X1800XL cards versus its own Geforce 7800GTX. Nvidia's argument is that this is the only card available and that ATI will never be able to have enough X1800XT cards. We already reported that X1800XT is coming in roughly four weeks so Nvidia is right it's still not out there, but it will surely make Nvidia run for its money when it tips up.