Gpu 0 = 280x, Gpu 1 = 270x, Gpu 2 = 6950
"intensity" : "13,20,18",
"worksize" : "256,256,256",
"scrypt-vert" : true,
"lookup-gap" : "2,2,2",
"thread-concurrency" : "8194,12290,8192",
"api-port" : "4028",
"expiry" : "120",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-threads" : "1,1,1",
"hotplug" : "5",
"log" : "5",
"no-pool-disable" : true,
"queue" : "1",
"scan-time" : "60",
"scrypt" : true,
"temp-hysteresis" : "3",
"shares" : "0",
"kernel-path" : "/usr/local/bin"