which graphic card should i buy i am buying second hand under 100$. options are.....

[bharatx1]

well i am buying from online site where people post their used products. i don't have money for new card and i am un-employed right now i need it for video editing.

HD 6670 1 gb 6 months warranty left
HD 6850 1 GB cyclone edition No warranty he bought it in 2012 but the guy says its working u can test in my house .
HD 7770 power color edition 1 GB No warranty left he say's its working he can show me its working
GTX 550 ti 1GB 2 years warranty left

all of these cards are in my budget which one should i buy?

 

[Mannaroth]

Hi..

If you are into video-editing i would recommend HD7770. Because it has higher engine clock and memory clock than others. Also more reasonable with $/performance ratio