what are your -
full pc specs,
budget,
purpose of using the gfx card?
if it's for gaming, take a look into this article: http://www.tomshardware.com/reviews/gaming-graphics-card-review,3107-7.html
tom's best gfx card for money articles recommend gfx cards at different price points to help people decide on which gfx card would be best for them.