ITs a Rare concern here. As haven't seen such issue on PG from long time. may be you can Try it for yourself and Why to scare of??? your main Concern is need to be experiment by oneself. try getting 280X or equivalent NVIDIA GPU, and then experience it yourself.
Dropping down to Lower frrom Native, will effect the Display quality, Blurrness will be there, lill bit.
Dropping down to Lower frrom Native, will effect the Display quality, Blurrness will be there, lill bit.