DELL NVIDIA Quadro FX4600, GDDR3, 384 bit, 3840 x 2400 pixels, PCI Express x16 DELL NVIDIA Quadro FX4600. Graphics card memory type: GDDR3, Memory bus: 384 bit. Maximum resolution: 3840 x 2400 pixels. DirectX version: 10.0, OpenGL version: 2.1. Interface type: PCI Express x16. Cooling type: Active