Was the 5700 Ultra i think, decent performance in 3D Mark only and sounded like 2 hoovers.
nope it was the FX5800Ultra or leafblower if you ever heard it.
Absolutely terrible card.
Nvidia did claw back some degree of respect with the FX5950Ultra and also the 5900XT which was an excellent mid range card.
Whilst not the biggest shakeup - I think one of the cards that changed everything was the 6800Ultra. It changed everything as it made everyone forget about the FX series and also made people realise Nvidia could make a decent card.
Then we have the obvious 9700pro which brought ATI back into the game.