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zarx said:
oni-link said:

Yeah the RV7xxx series wouldn't fit the requirements of the Wii U (since it basically needed a GPU that handled multi-display with ease).  Since the most basic GPU AMD has that utilizes Eyefinity is the 55xx series it is possible that Nintendo went for that at minimum.  Most practical would be the lines of 67xx series, seeing that it is a modified 55xx series designed for Blu-ray, 1.4aHDMI,  etc.


"Two independent display controllers

Drive two displays simultaneously with independent resolutions, refresh rates, color controls and video overlays for each display"

http://hothardware.com/Articles/ATI-Radeon-HD-4770-40nm-GPU/

Eyefinity is just driver support for treating 2 or more displays, as one really big high resolution display and it technically requires the displays to be the same reolution. which is nothing like what the Wii U does with two independent (or mirrored) displays each with different resolutions. 

The Wii U also doesn't support Blu-Ray playback and as far as I know is only HDMI 1.4.

The disc is technically a modified Blu-ray and thus why I mentioned it.  The HD 4770 would not account for a GPU significantly more advanced than the current GPU found on the PS360 according to developers.  Also the TDP values are nearly double what Nintendo is looking for the console but the Redwood and Turks is inline with what Iwata was stating.  Regardless, I still stay to the belief (given the data and rumors) that the GPU is most likely a Northern Island or Evergreen derived design; esp considering that those GPU were designed to run multi-display more seamlesly compared to RV7xxx design. Also, Nintendo intends to eventually use 2 gamepads which would be troublesome for the archaic CPU.  This would be alleviated by chosing a better core design (5xxx +) to off load work from the CPU to GPU.   Then again, I am not an expert on this just like to listen to people's hearsay and such.  I do work in the medical field (not the videogame/computer field) after all?