In Battlefield Vietnam we played a short sequence on the map "Ho-Chi-Min Trail" and determined the framerate using FRAPS. All quality settings were set to maximum through the Options->Video menu.
Here the X700 XT comes in ahead of the GeForce 6600 GT by a comfortable margin. Turning A.I. off results in a minor performance hit on the X700 XT.
Battlefield Vietnam - 4x FSAA & 8x Aniso
Again, the same test as before but with 4xFSAA und 8x anisotropic filtering forced through the driver.
Once again the X700 XT can grab a victory from its direct competitor, although not quite as clearly as without FSAA/AF.