Can't get 7970 to use vray RT opencl with latest drivers

[cgmaster]

I have an ati 7970 and tried both the lastest 2 drivers, 12.10 & 12.11. No matter what when I set it to openCL, it still keeps rendering with cpu only. How can I get this to work?

I read that people were getting the 7970 to work with RT...

[alexyork]

Made sure your scene is actually fitting into the GPU RAM? It might be too large and simply falling back to CPU-only. I've only ever used RT once ages ago so no idea if this is still the case.