Ever since 19th December 2013 I've been getting major fps drops/freezing every few minutes or so when on a previous day it was fine. I'm not sure if this was caused by a patch that came on the 18th.
GTX 770 with some overclocking
Installed on SSD
My fps is around 40 in cities and 60-100+ in the wilderness, however no matter where I am every few minutes the game just freezes up.
I've tried a lot of variations with video settings and I still have the issue.