yes mine is a 9550, sorry dumb fingered it, I do have 1.5 gigs of ram though.. im running an athalon 2800 which is 1.2 GHZ i believe heck its been so long i cant remember.. Mine also acted up when i got it but i updated all of my drivers and found out it was my soundblaster audiology that was creating my delema.. check and update EVERY driver for everything on your PC.. It might be my ram that makes mine so smooth i dont know... i have a friend with an athalon 64 and a radion 800 and his gets a better frame rate speed but actual gameplay i can tell no difference. im pretty happy with the card and my PC.. we were both supprised in the performance..