Sorry for bringing back to life this old topic but somehow I ended up here while searching for some bug info about my Radeon R9 290X and Dead Rising 3 with the latest dx11.
Now, without any intention from me to be a smartazz, I would like to ask you guys why don't try looking at google. From what I have found it appears that some guy managed to find a solution for older GPUs and make it possible to run latest dx11 games. Also, a lot of people are saying that it does make their game run with ther old graphic cards.
So maybe you should check it out. It can't hurt but there is always that small chance that actually someething might work.
Here is a link:
http://tinyurl.com/osjgnow
^ gl!
Now, I'm off to my Radeon R9 290X issues...
🙁