PowerColor HD 7970 V1 Low 450-550 KH/s

[G_prime]

Has anyone been able to maintain a decent hash rate with this GPU's PowerColor HD 7970 V1 ?
Its not a dual fan model.

[Caze]

What settings are you using? I got a R9 280X which is pretty much the same as HD7970 and I get ~710kh/s with "-I 13 -g2 -w 256 --thread-concurrency 8192". If the card is throttling, you need better cooling in your case.

[TeamICoiN]

The above settings should get your hash rate up. Remember cooling is very important, if your tower fans aren't good enough you might need to use a normal fan blowing onto the card.
Make sure the cards temp is around 80 degrees and under.