GPU: 760
CPU: i5 3570k
I have generally all settings on normal.
Edit* Added a video.
Edit2* Added a video for the night cycle.
Edit3* found the source.
Day - http://www.youtube.com/watch?v=wcrXkYp3ZBE&feature=youtu.be
Night - http://www.youtube.com/watch?v=oUTydEVzXxI&feature=youtu.be
Shadow option is the source - http://www.youtube.com/watch?v=0XmKFrP90cA