Here's our current test system.

We've increased our monitor size to Samsung's 30" LCD which features a 2560x1600 native resolution, perfect for the high-end 9800 GTX. Our drivers were ATI Catalyst 7.3 and Forceware 174.74 drivers. V-sync was disabled for all test and Windows Vista Home was our test OS. Every game was tested at the highest playable settings possible except Crysis on "High" with no anti-aliasing.

Want to play Crysis on "High" above 1920x1200 above 30fps? Then look to a pair of 9800 GTX cards to do so at least on AMD's best setup as the cards score 34.3. The difference between a single 9600 GT and 9800 GTX grows as we move from 1680x1050 to 1920x1200 but at 2560x1600 almost nothing is playable.

Unreal Tournament 3 is the most popular game engine on the market today so something we definitely want to investigate. It however is nowhere near as demanding as Crysis as we can see at 1680x1050 where it is more CPU bound and we in fact see a single 9600 GT top two 9600 GTs in SLI more than likely due to a fluke and but showing how much it is CPU bound at this resolution even at the maximum settings. Things start to grow at 1920x1200 as there is a 11fps difference between a 9600 GT and the 9800 GTX but at 2560x1600 the 9800 GTX finally shows it's might in SLI. Two 9600 GTs top a single 9800 at that resolution as well.