I'm getting a new machine at the moment, and am trying to get the most performance for my money graphics-wise. The decision I'm stuck on is whether to get the GeForce 512MB 9800GTX or to get two 512MB 9600GTXs and run them in SLI.
Has there been any performance tests running two of one against one of the other? The price difference between the two configurations is negligible, so if there's a bit performance benefit to either then I'd like to exploit it.
I'm going to disagree with alot of what has been said. 9600GT SLI will more often than not beat a single 9800GTX, even at that 14x9 resolution. So priced the same without doubt 9600GT SLI is the better solution in my eyes for a good 75% of the games out there.
Anyway, I feel it's important to let people know just how good 9600GT SLI is. Depending on the prices of your 9600GT, it can be an excellent option. (I paid $110 AR for my 9600GT).
But, I agree that a single G92 8800GTS, can do extremely well at that resolution, and save you money too with current available bargains. Only Crysis would you really get a playable difference in favor of the 9600GT SLI. (1440x900 2xaa all high should be playable throughout the entire game. - where A single GPU would have alot lower FPS in the most GPU demanding parts of Crysis) Otherwise the 9600GT SLI combo would get the better performance in most games, but both solutions would be more than playable anyway.