Susanna

This is a 7 minute Iray render test of a Character creation I call Susanna. Settings: Photoreal, 500 Samples and 95% Convergence at 2000 x 2000 Pixels using a virtual camera and 3 light rig in Daz 4.9  

This is rendered with a GTX 1070 8GB Card and i5 3470 CPU and 16GB Ram.

With 40% Convergence, Render Times drop to 3 and half minutes but you gain slightly more noise in the eyes and hair but not really noticeable unless pixel peeping.