I see, well I don't know. My dad has a 8400 (which is a bit of a disaster when it comes to the latest games, but it runs Flight Simulator X), and for the 8500 score I just looked on the internet with google compared some benchmarks that way... Perhaps SLi does matter more, after all it's usually somewhere between 40% and 60% faster than having only one card. I wasn't talking about the demo, but I'm not sure if it would matter that much, I always thought the demo runs worse than the full version. But I have played the demo only twice or so.
Anyways, I don't know... I wouldn't really recommend that card, but I think we can agree that the system it was about isn't all bad, especially for it's price, I definitely must admit.