Just wondering: What's better? one 7900GTX or 2 7900GTs? I'm asking this, because I was unable to find a test for this. I found one at Anandtech w/ the 7800s and the 2 GT won. But what about the 7900s? Alright, let's be more fair and compare one 7900GTX 512 vs. 2 7800GTs (SLI). Place your bets!