The other key word that you'll probably find on NVIDIA's packaging for the GeForce 8 is the Lumenex engine, which is mainly responsible for getting rid of the ugly jaggies in your applications. Anti-aliasing (AA), anisotropic filtering (AF) and high dynamic range (HDR) are some of the usual stuff handled by this new engine, which actually consists of some old fashioned components, mainly raster operators (ROP). However, these are enhanced versions of the ones on the older graphics cards and thanks to a new algorithm known as Coverage Sampling AA, allows 16x AA, which was previously not possible for a single GPU.



Link: HardwareZone