ATI FirePro V7800 2 GB DDR5 DVI/2DisplayPort PCI-Express Video Card 100-505604 - Retail ATI Eyefinity Technology Support ATI CrossFire Pro Technology Support ATI FirePro S400 Synchronization Module AutoDetect Technology Full 30-bit Display Pipeline Multi-View Display Certification Support DirectX 11.0, Full Shader Model 5.0 and OpenGL 3.2 OpenCL 1.0 GPU: ATI FirePro V7800 Memory: 2GB DDR5 Brandwidth: 128.0 GB/s Shader Processing Units: 1440 Memory Interface: 256-bit Bus: PCI-Express 2.0 x16 Max. Resolution: 2560x1600 @ 60Hz Connectors: DVI, Dual DisplayPort Thermal: Fansink Support Microsoft DirectX 11, Shader Model 5.0 and OpenGL 3.2 System Requirements: 512MB of system memory CD-ROM drive (or internet access) for software installation Power supply w/75W for graphics One 2x3 power connectors