I am just getting into crypto currency myself so I cant be of much help but try asking the people over here https://bitcointalk.org/index.php?topic=727023.2440 they should be able to help. Best of luck and I will be looking forward to see what the answer is as I was going to use a sapphire tri-x R9 290x  card to mine ultra coin.

~TruFord

I've been watching crypto currencies for awhile now. Me and a friend are looking into building a machine to run 4 Saphire Tri-x R9 290x cards. I dont have a problem building the machine but everyone seems to have a different opinion about what the scrypt rate on the cards are (or any card for that.) My research says I should be able to get around 1MH/s per card but I've been seeing in some places where people are saying theyre only getting like 9.7KH/s. Could someone help clear up the card hashrates and/or direct me in the right direction if I am currently going the wrong way?

Thank you!

 ~TruFord