When I switched to new hardware some weeks ago, I got an HD 4770, which were well below €100 then - and it works great so far. I had NVIDIA earlier, and had no problems with it either. 

A ship in port is safe; but that is not what ships are built for.
Sail out to sea and do new things.
-"Amazing Grace" Hopper

Avatar image of me done by Chidori.