Photos of GeForce GTX 280 graphics card

[largon]

Again, that all boils down to incompetence. No matter how you look at it.
And besides, 55nm is now just as mature as 65nm was when G92 came out.

So when has ATI made 576mm² chips @ 55nm?

Err... what?
55nm is the issue here. 55nm works for ATi, and assuming the bunnies at TSMC are not ATi-fans then the root of the problem is at nV.