Ars Reviews the Quadro 4000 Mac Edition: NVIDIA's sole Mac offering a promising start | Ars Technica
Amazon.com: NVIDIA Quadro 4000 for Mac by PNY 2GB GDDR5 PCI Express Gen 2 x16 DVI-I DL, DisplayPort and Stereo OpenGL, DirectX (Boot Camp), CUDA and OpenCL Profesional Graphics Board, VCQ4000MAC-PB :
NVIDIA Quadro FX 4000 Specs | TechPowerUp GPU Database
nVidia Quadro FX 4000 FX4000 AGP 8x Dual DVI 265MB Video Card Compeve Compenet nVidia Quadro FX 4000 FX4000 AGP 8x Dual DVI 265MB Video Card [VCQFX4000-PB] - $249.00 : Professional Multi
VCQFX4000 PNY nVidia Quadro FX 4000 256MB GDDR3 Dual DVI/ AGP 8X Video
600-50201-0002-202 - NVIDIA Quadro FX 4000 256MB 256-Bit GDDR3 Dual DVI AGP 8x Video Graphics Card
NVIDIA's Quadro 4000 for Mac, more affordable speed for the right application by Scott Simmons - ProVideo Coalition