Did you read the provided documentation with mining program? Usually there is a list of commands and an explantion of what they do. Then it's a bit or trial and error fine tuning your setup to get it how you want it.
with the help command genoil suggested may e i get them all no?Its a very old GPU, that's the most you will get out of that GPU.
AMD 7870 GHz in average get 13 but the 270x which are basically the same gpu get 14-15MH/s12 MH/s is already very fast for the old 7870 card. You can try --cl-global-work 16384 --cl-local-work 64, maybe 2-5% increase.
16384 increased a bit some of the peaks(18MH peak to 22MH/s peak but thats it)run ethminer --help for a full list of available command line options
thanks genoil i will check them12 MH/s is already very fast for the old 7870 card. You can try --cl-global-work 16384 --cl-local-work 64, maybe 2-5% increase.
people can get 14MH/s with same clockshttp://62.212.74.86/~mining/list/amd/index.php?algo=eth
Also try bumping your memory and core clocks up I have a 270x which is basically a 7870 that I OC to 1200/1500 that averages about 16.5 MH/s using the global work flag
