On the Club 3D Geforce FX 5700 Ultra patch 340 don't decrease performance in any way and even increases its performance by a very small margin on this 475/909 MHz clocked card.
I must admit that I had to retest this a few times to believe after I saw all this claims on the web, and was expecting that the FX 5700 Ultra would dramatically drop its performance in 3dmark03 but there it is. It's a fact.
If that is True and They have done everything correctly on their end then this indicates honest Compiler Optimizations for the 5700U. Which is a good thing.