Graphics Controller:  NVIDIA Quadro FX 4500 Workstation GPU Bus Type: PCI Express x16 RAMDAC: Dual 400 MHz integrated Memory: 512 MB GDDR3 SDRAM unified graphics memory Connectors: 2 DVI-I analog/digital monitor outputs, 1 3-pin Mini DIN stereo output, two DVI-I to VGA adapters included Multi-monitor Support: Dual integrated display controllers supporting up to 2048x1536 @ 75Hz (analog) or 3840x2400 @ 41Hz (digital) on both displays NVIDIA Quadro FX 4500 Architecture: 256-bit memory interface 35.2GB/sec. memory bandwidth Full 128-bit floating point color precision 12-bit subpixel precision 65,536 fragment instruction 65,536 vertex instruction 3D volumetric textures Single-system powerwall 12 pixels per clock rendering engine Hardware accelerated antialiased points & lines Hardware OpenGL® overlay planes Hardware accelerated two-sided lighting Hardware accelerated clipping planes Hardware two-sided lighting 3rd-generation occlusion culling OpenGL quad-buffered stereo Hardware-Accelerated Pixel Read-Back Shading Architecture: 16 textures per pixel in fragment programs Window ID clipping functionality Hardware accelerated line stippling Fully programmable GPU (OpenGL2.0/DirectX 9.0c class) Long fragment programs (up to 65,536 instructions) Long vertex programs (up to 65,536 instructions) Looping and subroutines (up to 256 loops per vertex program) Dynamic flow control Conditional execution High-level Shader Languages: Optimized compiler for Cg and Microsoft® HLSL OpenGL 2.0 and DirectX 9.0c support Open source compiler High-resolution Antialiasing: 12-bit subpixel sampling precision enhances AA quality Rotated-grid full-scene antialiasing (RG FSAA) 16x FSAA dramatically reduces visual aliasing artifacts or "jaggies" at resolution up to 1920x1200 Display Resolution Support: Dual Dual Link DVI-I output-drives digital displays at resolutions up to 3840 x 2400 @ 41Hz Internal 400 MHz DACs – Two analog displays up to 2048x1536 @ 75 Hz each nView Architecture: Advanced multi-display desktop & application management seamlessly integrated into Microsoft Windows®. Supported Graphics APIs: OpenGL 2.0 ICD with immediate mode support for all OGL primitive types DirectX 9.0c