This should help you decide.......it includes both cards you mention click here
My money would go on the older ATI9800pro which is noticably faster in all the resolutions/quality settings that are usable on these two cards.
Samsung Galaxy S8 review
1995-2015: How technology has changed the world in 20 years
This poetic animation about monsters is illustrated in a Van Gogh painterly style
Apple predictions 2017
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.