5770 crossfire

i have problem with AA in this card seems not working at all if i'm doing max settings still
moreover 10 times less fps compared to vista ultimate over win 7 ultimate, I really can't figure it out why & moreover both the catalyst versions are of current date
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More about 5770 crossfire
  1. Hello and welcome to the forums :)
    Be a little more specific please;post your full system specs,the games that you play and the resolution that you play
  2. mobo? psu?
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