360's GPU undercredited?

[Soleron]

Squilliam said:

Soleron said:
The Xenos is based on ATI's R600 architecture, which is substantially newer than Nvidia's G70. Nvidia's next-gen chip, the G80, was the one which competed with R600 on the desktop and that has unified shaders too.

Incidentally the Wii graphics chip is a heavily optimised R300 which is years old.

So, yes, the Xenos is more powerful and flexible. A potential "PS4" would use a graphics chip with unified shaders, since both ATI and Nvidia use them and they are the only choices at the momemt. Unless we get Intel's Larrabee.

How can it be a R300 when its features aren't similar at all to the R300? I can't remember the details, but my vague memory tells me they haven't got much in common.

Just as the Xenos is an early R600 prototype, the Gamecube's "Flipper" GPU was designed by ArtX, which ATI bought and used their IP to make the R300. So it's not an R300 but it's the closest in architecture to it.