What's up with the new Dual and Quad VGA 2007 charts

Okay, maybe I'm missing something, or perhaps M$'s flight simulator X is a bit more mysterious than I think, but on the VGA charts below

http://www23.tomshardware.com/grap [...] &chart=351

a dual 6600 (128mb) beats out a dual x1950 xt setup? Is something wrong here? In other games, things seem fine. What's the deal with FS-X? I wouldn't say it looks so nice that a crossfire x1950xt setup won't get more than 20fps at 1280x1024 without any AA or AF (that's what the results in the VGA charts say). What's the deal? I mean, the SLI dual 8800GTS only gets 23fps without any AA or AF--who the hell is going to buy a game that won't display playable fps's on the most top-of-the-line hardware out? Am I missing something...? Or are the charts wrong?

I think all of the reported configurations are dual-card, so it's a dual-6600 and a dual-x1950. But still--it doesn't make sense. Even at 1600x1200 with in-game AA and AF, there's only 1 FPS difference between the two. I still don't get it...

True, it could be limited to the power of the CPU--but these were tested with a Core 2 Extreme X6800--by far the most powerful general-use processor today--While not impossible, I find it very hard to believe that a game will really be limited by the X6800 CPU. But it could be possible. I noticed the same trend in FPS--all around 20-ish, but I just couldn't believe that could be the case. Anyway, we'll see if things change...