Shapphire HD7970 3GB Dualx. 650Kh/s- 750Kh/s
Really don't know what are most of the options for, just copypasted a bit from every trhead and melted.

"intensity" : "13",
"vectors" : "1",
"worksize" : "256",
"kernel" : "scrypt",
"lookup-gap" : "2",
"thread-concurrency" : "8192",
"shaders" : "2048",
"api-port" : "4028",
"expiry" : "120",
"gpu-engine" : "1085",
"gpu-dyninterval" : "7",
"gpu-memdiff" : "0",
"gpu-memclock" : "1500",
"gpu-powertune" : "20",
"gpu-platform" : "0",
"gpu-threads" : "2",
"log" : "5",
"no-pool-disable" : true,
"scan-time" : "30",
"shares" : "0",
"scrypt" : true,
"kernel-path" : "/usr/local/bin",
"temp-target" : "75",
"temp-cutoff" : "85",
"temp-overheat" : "80",
"gpu-fan" : "80",
"temp-hysteresis" : "3"