ati cheating in crysis benchmark?

[Carfax]

If Ati is cheating in Crysis, is nvidia doing the same in metro 2033?
http://www.xbitlabs.com/articles/vid..._11.html#sect0

Try reading the rest of the page:

Perhaps this reduction of quality is the trick the GeForce GTX 480 resorts to in order to deliver a higher speed in Metro 2033? The game developer answered to our question promptly. Here is what Oles Shishkovtsov, 4A Games Chief Technical Officer said:

No, the observed difference in quality is not due to the performance of the graphics cards. Indeed, graphics cards from Nvidia and ATI render the scene differently in some antialiasing modes. We are trying to find a way to correct this issue. Again, this has nothing to do with speed.

So it's a bug of some sort.