check out how 7800gtx 512mb jump pver x1800xt 512mb by 20% in half-life lost coast :
http://www.gamepc.com/labs/view_content.asp?id=h2k5512&page=7
F.E.A.R ..7800GTX also wins by a far lead ...
http://www.gamepc.com/labs/view_content.asp?id=h2k5512&page=8
in call of duty 2 ..the performance is near ..but still 7800gtx 512 is the top :
http://www.gamepc.com/labs/view_content.asp?id=h2k5512&page=9
DOOM3 : of course this game is for 7800gtx with no doubt :
http://www.gamepc.com/labs/view_content.asp?id=h2k5512&page=10
so X1800XT cann't destroy 7800GTX 512MB ...because 7800GTX 512MB takes the lead !!!