Quake 4 is a very relevant test as this is obviously a very popular multiplayer game. Having a low framerate while competing in a local LAN is only going to hurt your chances of winning.
While the X1950XTX is faster than the X1900XTX it still lags well behind the 7900GTX. With a comfortable margain over 100FPS though, it’s kind of a moot point. We will be switching to a more demanding Quake 4 scenario very soon.