7.2 performance boost?

[King of Pilots]

I just noticed that i can run R6 vegas with 1600x1200 with no shadows but other settings maxed. I have a X1800XT @ 716-1640. Not a too overclocked card. I also have an athlon 3500+ and 2 gb of ram ddr400. I could not run R6 at full 1600x1200, not even with HDR off. I had to cut it at 1024x768 and no shadows to max other settings. The strange thing is that, while i cannot use the shadow anyway (i got few pixel shader, their not enough) i can set everythng else at high settings and 1600x1200 (sometimes FPS are not more than 25, but average is 30). So i am asking if anyone noticed a boost in performance since 7.2 catalyst. Also notice my R6 version is last 1.04 one. Any clue?

[fudo]

have to try that game but 7.3 works fine with STALKER and other games we benchmarked