The benchmark is not using SLI. You're using only one core of your GTX295, which makes it like a GTX260.
The 7000 score is using a 980X CPU, yet you chose to focus on who makes the graphics card he's using? Use your head, we're talking about a $1000 hexacore processor here that is vastly faster than anything else on the market. The only person with a newer nVidia card on the leaderboard so far is myself, and I'm using a 5 year old CPU... and I got beat by 700 points on high.
Thus far, the scores seem to be right on the money company to company.