Correct me i'm wrong, but by 1080p ultra wide screen I assume you are refering to 21:9 , 2560 x 1080 ? Virtually any card can run any resolutions, what you display is the key. If your doing simple web browsing and word processing its nothing, so that question is what games are quality settings are you thinking? Simple answer is you have 33% more pixels so adjust the 1080p benchmarks you see accordingly. Biggest consideration will be alot of game don't like 21:9, and you may need to manually adjust the configuration files, deal with distortion, or in some cases give up entirely. Off hand guess you should set your sights at 30 with decent settings.
ETA: As for alternatives/upgrades, I agree with SPgamer007