Nvidia Quadro FX 4800 1.5GB PCIe Mac Pro CUDA Graphics Card
Amazon.com: Epic IT Service - Quadro 4000 for Mac, for Apple mac pro, 2GB GDDR5 PCI Express Gen 2 x16, DVI-I DL, DisplayPort, DirectX (Boot Camp), CUDA and OpenCL Profesional Board -
Amazon.com: NVIDA Quadro FX 4800 for Mac OS 10.5.7, Mac Pro 3, 1 or 4,1 and Boo Camp, 1.5GB GDDR3 PCI-Express Gen 2 x 16 DVI-I DL, D : Electronics