3DMark06 produces a surprising result: the GeForce 8800 GTS 512MB scores only 39 points more than the ECS card, which is within the measurement error range considering that the scores are over 11,000 points.
There is a certain difference in the groups of tests, though. It is somewhat odd to see the ECS N8800GT-512MX DT win the SM2.0 tests because it has fewer TMUs than the GeForce 8800 GTS 512MB. The latter’s advantage in the SM3.0/HDR tests provokes no questions since it has 16 shader processors more than the ECS card.
In the individual tests the ECS is always a little behind the Nvidia GeForce 8800 GTS 512MB. This may be due to the use of FSAA and the slightly lower memory frequency of the ECS card.