He means sabotaged AMD gamers experience because their hardware cant run PhysX at all
They can run open standards like OpenCL and DirectCompute. There's no reason to use PhysX except to favor Nvidia.
Tesselation at low factors or it chokes
Proportion (not level) of tesselation to regular rendering is the key.
Since Nvidia cards use their shaders to tesselate, they can assign any proportion of shaders they want to tesselation.
And in a non-typical proportion (not level) of tesselation (Unigine Heaven) will cause more shaders than usual to be used in tesselation.
Given that Unigine Heaven tries to tesselate pretty much everything it possibly can (that's its whole purpose), I think it's safe to say the proportion of tesselation to non-tesselation work is highly imbalanced.
In a typical level of tesselation (i.e. what you'd expect to see in a game), with the proportion of tesselation to non-tesselation work being much smaller than Unigine Heaven,a smaller proportion of shaders in the Nvidia cards will also be used for tesselation.
Of course I don't blame Unigine developers for purposely favoring Nvidia, because they didn't. They obviously just thought that in a tesselation benchmark, putting as much tesselation as possible will really push cards.
They just didn't think about the fact that proportion of tesselation to non-tesselation work will affect the performance difference of Evergreen and GF1xx cards, due to the different models used (fixed unit vs shader based).
and AA in DX 9 games because AMD refuses to submit code to the devs to do that.
If you're referring to Batman: AA, AMD did not "refuse to submit code to the devs"
In fact, Eidos went to both AMD and Nvidia and asked how they should implement AA. AMD and Nvidia suggested the same, standard method. The same method they did in fact end up implementing, and which works on AMD hardware if it's not
deliberately disabled.
That is evident by the fact that using an Nvidia vendor and device ID on AMD hardware allows you to run AA without problems. Which if you believe Nvidia, shouldn't even be possible.
So no, that is not some conspiracy. It is what the evidence tells us.