Need help finding a GPU that support GPU Direct RDMA.

I’m trying to find the cheapest GPU that support GPU Direct RDMA, but having trouble determining which Quadro cards support this feature. It looks like all Tesla cards, kepler and later, support GPU Direct RDMA, but the Quadro cards are quite a bit cheaper and http://docs.nvidia.com/cuda/gpudirect-rdma/index.html mentions that Quadro cards also support this feature. So do all Quadro using the kepler or later architecture also support this feature, i.e the K2000, K2200 or K4000, or do only certain Quadro cards support it?