On the OP linked article....
i have the original PS3 and its worked fine. Desktop Class GPU and all.
A 28nm modern desktop GPU would work easily but the consoles are known for cutting corners in costs.
1.6ghz CPU thats a laugh AMD 1.6ghz too. like a 1ghz intel CPU.
Console graphics suck and they have always sucked. Can barely handle 720p today and they might just about handle 1080p in next gen.
But in 2 years time it will be dead in the water again as newer games cant be handled on a poxy 1.6ghz CPU and mobile GPU