The third test gives out a similar picture, except that the RADEON X1800 XT only beats the ASUS Extreme N7800GTX TOP in 1600x1200 resolution with enabled full-screen antialiasing (but even in this case the difference between the cards is no more than 5-6%). It’s hard to explain the results since the third test only differs from the second one in having a more complex geometry – the number of vertex processors is the same in the ASUS card and in the ATI RADEON X1800 XT. And the latter card clocks them at a higher frequency.
The fourth test demands high pixel as well as vertex shader performance from the graphics card. The ASUS Extreme N7800GTX TOP performs brilliantly here. Its computational capabilities have increased along with the operational frequencies, reaching the level of the RADEON X1800 XT. The ASUS card offers the same speed as the senior model from ATI Technologies irrespective of the resolution and test mode.
So, the ASUS Extreme N7800GTX TOP was slower than the RADEON X1800 XT in the first test only, otherwise being better or equal to it. Its higher overall score seems well-deserved.