Overclocked EVGA 7900 GTX versus X1900 XTX is close call
 

EVGA, just for an instance, released its 7900 GTX 512 card clocked at 690 MHz core and an absolutely whopping 1760MHz memory. The card is equipped with a quad heat pipe cooler, and looks almost identical to 7800 GTX 512 cards, as a matter a fact it is just a little bit faster than it.