Everything points to shared iirc
The problem with this kind of thinking, is that we don't really know which info we got about old dev kits, who gave us second hand information and what information we have now.
That is why I strongly think we should try to figure out what we know, before we declare it as fact. For instance unified memory doesn't really make complete sense, given that the system and game resources are completely separate right now, who is saying that they aren't simply 2 different pools.
About the e6760: If the original dev kits used HD4850s to approximate the performance of a chip, the e6760's performance does fall perfectly in line with this, not saying it is but it also really doesn't matter if it's not; we are getting a grasp on the performance and this fits the power draw and the targeted performance.
It works with all of our rumors too. Also while the e6760 is part of the "turks" family, it's using "evergreen" shaders, which is the HD5000 series. Embedded graphic cards also are perfect for a low powered console and looking at the software side of it, e6760 fits the bill quite a bit. You could call it the full featured GPU lacking teeth (even if it's performance can match a 2008's 1TFLOPs card, that doesn't mean it does it with raw power)
I want to point out also that the 40nm was likely shrunk, what exactly does 1GB of GDDR5 cost? 5watts? I am not sure but lets use that number so we can move forward with our speculations, 30watts is now what the e6760 runs at, shrunken to 32nm or 28nm (there was the rumor about problems in manufacturing the gpu, that certainly isn't something done at 40nm) at 28nm it's easy to push the GPU to 20watts or less, but we will be realistic and say 25watts for the 32nm. 8-10watts for the CPU and another 10watts for the system would reach that 45watts fairly easily.
My guess is that Wii U is 3 custom 476fp's built on PPC7 tech (the soi and embedded ram) sharing the 32mb edram with the custom embedded GPU7 which is 5000 series shaders or 6000 series shaders combined with 1GB ram and some fixed functions to emulate Flipper more accurately. I do think we are talking about something beyond the 4000 series as a base, in fact I haven't seen one single semi reliable rumor that confirms that Wii U is still using something based off of R770 (which is what the HD4850 is) instead all I see is a lot of people who don't want to get hyped, so they down play whatever the specs could be and hold onto rumors like the OP's, which comes from at best second hand info from someone who knows very little about what that info means.
Arkam has been great trying to give us this info, even when he was attacked but just because he was told something about the system a year ago, doesn't mean that is what the system is now.
I really hope this got through to some of you, I understand that you have a lot of insider info being thrown around at you, but I think you are mixing info from old sources, new sources and unreliable sources in such a way, that it becomes useless information.
