Strong OpenCL card compatible with Mavericks

[pinktank]

Since the nvidias are not working at the moment with opencl, and further failing power management, I was wondering, how are the others doing?

 

[cdrhoek]

I have dual HD7970s. They work fine with Mavericks. Mavericks recognizes and uses both HD7970s and the Intel 4600 onboard graphics. I get a Luxmark score of 4752 with all three GPUs. I believe the newer 280x cards work also. You might consider waiting until 10.9.3 is released and see if the 290x is supported.