I got an X800 pro vivo by Asus for £150 from ebay. It is 16 pipes unlocked and runs at 500/580 stable in NFS:Most Wanted, which is very sensitive to overclocking. I ran it at 520/560 which is X800XT speeds but got similar benchmark scores to my current speed + NFS didn't like that clock.
(P.S My posts are appearing at the top of these threads, which is feaking me out).
(P.S My posts are appearing at the top of these threads, which is feaking me out).