Hello, just want to ask how good this graphic card is and how long it can be used for gaming.. thank you
More aboutradeon hd5670 gddr5
You're in luck. THG has lots of charts that show how various parts perform. Go HERE to see the 5670 compared to others.
It's very entry level. I am not sure how to answer the last half of the question.
It can be used for as long as you want it to, depending on the games you play, of course.
I've got the 6670 ddr3 version, and I play Skyrim and Fallout 3 just fine. Since your 5670 is the GDDR5 version, it is around 20% faster than mine. Gaming should be good, supposing you stay at around 720p or under.