Are you joking me? Give me a substantial difference in fps between a 9800GTS G92, and a 8800GTS G92 card. There is hardly any, perhaps the 9800GTS will score a little bit higher on a 3dmark and half a frame more on average but it comes nowhere near to actually beating the 8800GTS G92...
Seeing the 8800GTS G92 won't beat two 8800GT's in SLI I'd rather stick with the 8800GT's in SLI (and no... 9800GX2 is not an option, I'd blow my budget with more then 200 euro's.)
If you meant in the Q9450 system that would be even worse seeing I would blow my budget with 100 euro's at least without getting more then 0.5 frames more on average.
