Dynamically scale graphics performance, enhance image quality by combining multiple Quadro FX 4800 graphic cards by presenting them as a single graphics card within a ThinkStation D20 system.SLI Frame Rendering: Transparently scale application performance that benefits visual simulation, broadcast and video applications which are fill rate-limited, using the split frame rendering (SFR) mode. SLI Full Screen Anti Aliasing (FSAA): Transparently scale image quality. FSLI FSAA increases the FSAA level up to 32X to remove jaggies from contours of geometries in real time that benefits design review and digital mockup (DMU), Visual simulation, broadcast and video applications. For information on graphic cards, please visit: www.lenovo.com/thinkstation or www.lenovo.com/support/graphiccards For more information on options, accessories, including compatibility, please visit: www.lenovo.com/accessoriesguide