I recently bought a 270x and now star citizen looks really weird only outside of the hangar. I had a gtx 750 before this and everything looked fine.
The issue is more pronounced at very high (less noticable on low). Infact it makes very high look ridiculously bad. Heres a few pics of it in free flight > broken moon @ very high.


http://oi57.tinypic.com/dtg8p.jpg
oi62.tinypic.com/2z65hfk.jpg