Futuremark 3DMark06 build 1.0.2
The performance of the GeForce 7950GX2 plummets down to the level of the GeForce 7900 GTX in 3DMark06. The High Quality mode must have affected some driver optimizations for SLI mode in this benchmark. If it is so, we are going to see the same in individual tests, too.
Our point is confirmed by the results we have in the SM2.0 tests. Although the EN7950GX2 is faster than the Radeon X1950 XTX, it is not as faster as it used to be. It is only a mere 47 points ahead of the GeForce 7900 GTX, which is a negligible difference.
In the SM3.0/HDR tests the results of the EN7950GX2 coincide with the results of the GeForce 7900 GTX with an up to 1 point precision.
SLI mode works here indeed. Otherwise, the results of the EN7950GX2 would be much lower (only 24 TMUs would be active then instead of 48).
It’s different in the second SM2.0 test: the EN7950GX2 wins in 1280x1024 but then slows down to the level of the Radeon X1950 XTX in the higher resolutions. This must be due to the deactivation of certain SLI optimizations in the ForceWare driver because the GeForce 7900 GTX suffers a much smaller performance hit in comparison with its dual-chip relative.