NVIDIA GPUDirect allows higher bandwidth and lower latency between NVIDIA GPUs and third party PCI-Express cards such as network adapters, frame grabbers and FPGA modules.  We’ve implemented GPUDirect for 4DSP’s FPGA cards.  These FPGA cards can be equipped with a wide range of analogue-to-digital and digital-to-analogue converters (ADCs and DACs) as well as frame grabbers and other I/O modules.  When using the 4DSP PCI-Express IP core, drivers and API, the Hybrid DSP GPUDirect library can be used on top of this to improve and simplify data transfer between FPGA card and GPU.  Please send an email for more information.