http://prntscr.com/3mvi3v2x gigabyte 280x + msi 280x = 9900+Mh/s
"kernel" : "x11mod",
"intensity" : "20",
"vectors" : "1",
"worksize" : "256",
"lookup-gap" : "2",
"thread-concurrency" : "8191",
"api-port" : "4028",
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "2",
"gpu-engine" : "1150,1150,1150",
"gpu-memclock" : "1500",
"gpu-powertune" : "20",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "60",
"scrypt" : true,
"shares" : "0",
"kernel-path" : "/usr/local/bin",
"api-listen" : true,
"no-submit-stale" : true,
"auto-gpu" : true,
"temp-target" : "75",
"temp-overheat" : "85",
"temp-cutoff" : "94"