Rumour: PS4 to feature AMD GPU a gen ahead of nextbox

[Viper1]

sergiodaly said:

ps3 and xbox 360 have GPUs based on high end GPUs, why will PS4 or Xbox 720 be different... based does not mean equal... my point in using the 7950 as a example has to be with the number of processing units and not so much with memory bus, (witch the 386 bit used in the card is not needed IMO), GPU clock; with that lowered a bit, the number of GPUs usable from the production process will be greater (meaning cheaper overall). this way games could have more things on screen versus the the need to push over the full hd resolution and the screen refreshing speed.
Xenos for example is based in a r500 ati GPU but moded to have more unified shaders than the rest of the r500 family. here if AMD start with a already high count processing units will be easier to moded it to the console needs (more processing units, less GPU speed and lower memory bus)

this could be packed in a 120 whatt envelope by mid year 2013 (time when full production of Orbis will start)

Again, you are missing the point I made above.  TDP for an HD 7950 is 180 watts.  TDP for the X1800 XL the Xenos is based on was 60 watts. 

The X1800 XL was also very mid range.    It would be comporable to the HD 7750 of today.