GPUs that allow you to change FP64:FP32 ratio

[drtchocky]

I'm interested in doing some research using Molecular Dynamics, which very much benefits from having FP64 precision. It looks like with the Titan Black, you could change the FP64:FP32 ratio to ~1:3, which is comparable to the Tesla cards (but at 1/4 the price). Are there any other cards that allow you to do this? I'd like to get close to 1:3 if possible without buying a Tesla range card (I'd get some Titan Blacks, but they are basically impossible to find at this point). 

[y_unit265]

I don't know much about that, but I did manage to find a new titan black.