But isn't GPU already a massively parallel processor? I mean, if you can put in multiple core on the same die (you must be able to cramp that much transistor on a die) why not come up with an architecture that has twice the SMP in one single core

I may be wrong but I finds multicore on GPU to be very strange..

ps: I'm not doubting the source. Just unsure of the benefits ATi sees in making multi core GPU.

Furthermore, what is the architecture? is it new, or are they just slapping in the same old architecture with smaller fabrication process and so cramping 2 cores on one die.