Full Details from Amazon.com : http://www.amazon.com/gp/product/B00487M7SE?tag=onigi-20
NVIDIA Quadro 6000 by PNY - Grafikkarten - Quadro 6000
Maximum graphic adapter memory 6144 mb
Graphics adapter memory type gddr5-sdram
Memory bus 384 bit
Memory bandwidth max 144 gbs
Graphic processor nvidia quadro 6000