Anybody have a recommended setting for Sapphire R9 280x's via CGMINER? I'm only getting around 350MHs per card hashing. Worker Utility is around 75 though. Any ideas? These pups should be way faster, no?
Current config is rather basic:
cgminer.exe --keccak --no-submit-stale -o stratum+tcp://maxpool.1gh.com:17333 -u mQWyBikKCHMshnjEewY6kKxQX6jxzDG3Ui -p x -I 13
Seems about right. I'm getting 335 mh/s with a HD5970 which puts up similar hash rates as your for scrypt mining (slightly less).