se7en7thre3 on 26 September 2012
Going off the OP "GPU 7", and this article that correctly predicted 1 gb of ram for games http://www.eurogamer.net/articles/2012-08-30-how-powerful-is-the-wii-u-really referring to a "AMD 7 series gpu"
I think the GPU could be based on the AMD Radeon, HD 7700M series http://www.amd.com/us/products/notebook/graphics/7000m/7700m/Pages/radeon-7700m-series.aspx#2
