Nvidia quadro k420 power efficient 3d application performance the nvidia quadro k420 delivers power efficient 3d application performance and capability 1gb of ddr3 gpu memory with fast bandwidth enables you to create complex 3d models and a flexible single slot and low profile form factor makes it compatible with even the most space and power constrained chassis plus an all new display engine drives up to four displays with displayport 12 support for ultra high resolutions like 3840 x 2160 at 60