Hi,

I got 1.636Kh/s using http://www.getpimp.org/downloads/pimp-amd/pimp-amd-1-6-0.html  13.12 drivers Linux. I just don't seem to be able to get the same speeds in Windows.

"intensity" : "18",
"vectors" : "1",
"worksize" : "256",
"lookup-gap" : "2",
"thread-concurrency" : "5824",
"shaders" : "0",
"api-listen" : true,
"api-port" : "4028",
"api-allow" : "W:127.0.0.1",
"gpu-threads" : "1",
"gpu-dyninterval" : "7",
"gpu-platform" : "0",
"gpu-engine" : "875",
"gpu-memclock" : "1200",
"gpu-powertune" : "0",
"gpu-vddc" : "1.02",
"gpu-fan" : "80",
"auto-fan" : true,

From lspci | grep 5850

06:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Cypress PRO [Radeon HD 5850]

Hope this helps.