I've got a gtx780 running at 1300MHz, and a 2500k at 5GHz. With the 15th update, in packed areas I get 20fps at 1024x768 and 1920x1200 -- I used to get at least 40 ! How could you possibly be getting 50? Even the fastest i7 is only 30% faster than what I've got in games that use 4 threads or less (ARR seems to use only 3).....