lol
a ati 9550 was a low budget card like the nv fx5200/5500. and believe me, the nv 5200/5500 sux much more. and if you never owned a ati then shut up . the 8800 gt comes 3 generations later and was a upper midrange card. sorry, but your compares were more then silly.
i owned ati and nvidia cards and i had more problems with my last nvidiacard then to my aticards before.
a good friend is a hardcore hardware freak and he tested much more then many magazines.
he got now the ati 4750 and is very happy now about it. for this price you got enough power for all games in big resolutions. btw. he is using a tripplehead2go and got no problems with qualitysettings. and he pushed his old 3850 to 1 ghz on the gpu

he was still able to play games with it