You mean how ATi always seemed to beat Nvidia on highend?
Not really.
I can reread the whole 3D card race back till 1999, when NVidia released the Geforce 128, surpassing the former competitors Voodoo 3x (3Dfx), Rage 128/Fury (ATI), Matrox G400 and the TNT2...also from NVidia. After that and through the year 2000, with the release of the GeForce 2 series, NVidia kept on dominating the market. Its nearest enemies were 3Dfx with the Voodoo 5 series and ATI who came up with a new chip on the market - the Radeon. But still, NVidias chips were faster than anything the competition could come up with (Matrox decided to do something else than manufactoring 3D chips for gamers).
Then, in january of 2001, NVidia went out for the kill - purchasing 3Dfx, the closest follow-up to NVdia's market position. The market domination was choking. If you wanted the fastest card out there, you had to go for the brand-new Geforce 3, which was released in june 2001. Any other cards? Yeah, but the Radeon DDR and the very innovative Kyro were only had a chance on the lower budget market. No surprise, since NVidia pushed the prices higher than ever. When 2001 came to a close, ATI finally could face NVidia head-on with the 8500, which by then began to take some market shares back, fueled by the prices which were about fifteen percent lower than for a comparable GF3 (the 7500 (an updated Radeon DDR) took the GF2 head-on in the budget market). But still, if you wanted performance, you had to choose NVidia - thanks to their updated Geforce 3 chip (Ti 500).
In spring of 2002, NVidias product range further gained in width. The Geforce 4 (a updated Geforce 3) and its' many subversions (some were actually GF2s) held up the stakes in the Dx-8 race till the new round for the Direct-X 9 crown began. But suddenly, in august 2002, the GF4 Ti4600 got kicked from the throne...by a brand new, ultra fast and Direct-X 9 compatible card from ATI - the 9700Pro!
The cards in the high end market got shuffeled anew - after three years of unbeaten dominance of one single company. Until february of 2003, the only market NVidia was without competition on were the budget cards...until the Radeon 9500Pro arrived.
The Radeon kept on dominating. Even when NVidia released their long-awaited, but in the end unsatisfying GeForce FX in spring, ATI kept the crown - thanks to the 9800Pro. The race leveled out again in summer of 2003, when NVidia put the 5900 series on the market, which were slightly better than the 9800Pro. The Geforce managed to recapture the 3D throne with the third version of the FX, the 5950 chip (competitor: 9800XT), at the end of 2003.
This didn't change much until mid-2004 when NVdia and ATI released their 6800/X800 series, almost at the same time - this time with a slight advantage for ATI.
The biggest change till early 2005 was the rising importance of PCI-Express, which was dominated till about spring by ATI. There was nothing new on the AGP front till then, it was still a close race between the X800 and 6800 series.
(Inacurracy from here on...)
From mid-2005 on, NVidias GF7 dominated the benchmarks and ATI needed time till x-mas 2005 to put a card on the market that could outperform the competition - the X1800. Soon enough, in spring 2006, ATI upped the ante even more with the X1900 which kept the crown till NVidia launched the 7950GX2.
And from then on, and till now, NVidia cards are the best performing cards on the market.
But for how long?
Sorry for the history lesson. I haven't aimed for 100% accuracy and I know Nick will disagree on everything I wrote, I just wanted to give you an idea about the race between 3D cards.
Even though, the 2900 will shake the market, maybe like the 9700 did, there won't be anything that hasn't been there before.
