DeathKnight,
First, thanks for the link - I read it with great interest.
You probably read this article way more times than the one time I just did, so perhaps you can answer me how you conclude that Xbox will be able to handle 40 to 60 mpps, perhaps justifying its 3 times superiour output? The only relevant bits I found in that article states:
Under virtually any set of assumptions, Xbox has adequate memory bandwidth to handle 50 Mtris/sec. in real-world use, and usually plenty to hit the pipeline limits of the chip.
He also states that:
Having said all that, the Xbox GPU will be able, even at 250 MHz, to handle up to 125 million Gouraud-shaded, two-texture triangles per second, complete with transformation, clipping, and perspective projection. With one infinite hardware light added, the rate will be at least 62.5 Mtris/sec.; with eight local lights, at least 8 Mtris/sec.
Obviously, adding nifty light sources decreases geometry outout. Considering that a game with 1 infinite hardware light is still able to push 62.5 Mtris/sec, I have to question if this is taking texturing and many other in-game related stuff into consideration? I doubt though. Of course, a very simple game pushing ~50+ mpps should be possible - I however doubt though that anyone would use it as an example of 3x times the geometry compared to other consoles. Actually, under those circumstances, PS2 probably wouldn't be that far off...
Any thoughts, Or did I miss something relevant?