Playing first game and had a couple of crashes and reloads before I noticed Khmer fame was at 140,000 compared to my 2,200 odd in turn 80ish, has anyone else found that the AI's fame score is increasing in increments of 100 constantly.  Have they built a wonder that unlocks this OP fame score generator or is my game just bugged and I need to start a new one. 

You do not get 140k by turn 80. Sounds like a bug.