I am asking for a friend. I just recently got an HD 7950 But he needs the most bang for his buck under $100. I was thinking the HD 6670 looked pretty good but I was hoping for some input before I tell him what to get.
Best card strictly under $100 is the GDDR5-equipped 6670 like one of these.
However, there is no true competition for an HD7750 or GTX 650 in the $100-$120 price segment. IMO, he needs to pony up another extra $20 and get one of the GDDR5 HD7750s or GTX 650s.
Benches here of the 6670 vs 7750. The 6670 is barely making it at even 720p rez.
Edit: Forgot about the GTX 650. Benches of it versus the 7750 here, and the 6670 here.
If you can put up with a rebate you could probably snag an HD7770 or GTX650Ti for good prices. The BF ones were pretty damn good for ~110 out the door and 70AR.