"Still very bad for my project. I need 10 min or less." At that resolution??? (1024x768 ultra)? Come on man, send your stuff to a renderfarm then. "It is obvious that no one uses radiosity nor ultra mode in animation." Radiosity is rarely used for animation even with high end apps on a network render farm. Usually, GI is either faked or... in some cases... rendered with photon mapping or light mapping technology, where GI is calculated much faster than with Radiosity.

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Tools :  3dsmax 2015, Daz Studio 4.6, PoserPro 2012, Blender v2.74

System: Pentium QuadCore i7, under Win 8, GeForce GTX 780 / 2GB GPU.