TrustedReviews posted a comparison review between the Asus Extreme N7800 GTX TOP and the Leadtek WinFast PX7800 GTX TDH

As far as model name goes, it’s not exactly a classic. Fortunately, Asus also has a shorter name for the card - the Extreme N7800 GTX TOP. This card differs from the reference design by dint of the fact that it sports a different cooler, called the Arctic Cooling NV Silencer 5 (Rev. 3).

GeForce 7800 GTX Head-to-Head Review