card. The 7900 hasn't been a good experience for me and I was wondering should I try another or buy a xt1800xt 512 card?
The 7900GT is a very nice card. It's possible eVGA had a bad batch that happens all the time.
Return it where you purchased it and get a brand new one or RMA it and get one that works.
Just because some 7900GTs are having issues doesn't mean you should go with ATI.
ATI cards have issues too.