I don't really understand what issues you guys are running into w/these cards.
After having a VERY long discussion with someone @XFX I gotta say I disagree with the theory of "throttling" on the 590.
Benchmarks aren't going to do much in terms of scaling b/c SLI hasn't been perfected yet with these cards...it's @ maybe 40% atm which, most of you see for yourselves. I'm seeing it right now @work with CS5, some high-end flash apps are making this driver "issue" very poignant but, throttling? No.
It's going to take some time for the drivers to mature but, that doesn't mean these cards are throttling in any way/shape/form UNTIL the drivers mature and we see that issue, repeatedly...That's been true of any release, even the 6990's.
That being said, gonna start benching my work PC when I get it tweaked again and the home PC will shortly follow.
Food Poisoning sucks balls.
The best we are going to get are reports from users and posted testing results -- and from that people are going to draw their own conclusions. There are already some benchmarking results in this thread that imply throttling.
People are going to be convinced with different levels of evidence so while you may not be believe the card is throttling -- just because SOME people do... does not necessarily make them incorrect.