Nvidia GeForce GTX 980 White Paper

Also see for GeForce GTX 980: Installation guide Installation guide

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Nvidia GeForce GTX 980 White Paper Manual pdf 29 page image

GeForce GTX 980 WhitepaperADVANCING THE STATE-OF-THE-ARTIN IMAGE QUALITY29Dynamic Super ResolutionThanks to rapidly falling LCD prices, the popularity of 4K displays has surged this year. But not all gamerswant to spend the money on a new monitor. For the eye candy purists who don’t want to splurge butwant to approximate the crisper visuals of a 4K panel, many have turned to the process of“downsampling.” This is where the GPU renders the game at a resolution higher than the screen candisplay, and then scales the image down to the native resolution on output to the user’s display.Downsampling require users to set up custom displays with the graphics driver control panel, and adjustvarious low-level display parameters to appear properly. So it’s not necessarily the friendliest way toimprove image quality. Also, while downsampling can provide a significant improvement in imagequality, artifacts are sometimes observed on textures and when certain post-processing effects areapplied.To address the usability and quality issues, NVIDIA has developed a method called Dynamic SuperResolution. In principal, Dynamic Super Resolution works like traditional downsampling, but it has asimple on/off user control, and it uses a 13-tap Gaussian filter during the conversion to displayresolution. The high-quality filter reduces or eliminates the aliasing artifacts experienced with the simpledownsampling, which relies on a simpler box filter.Note that people often confuse downsampling (and now Dynamic Super Resolution) with the traditionalSupersampling method of anti-aliasing. All three techniques render at higher resolutions internally, andthen filter down to lower resolution for output. The difference is that downsampling and Dynamic SuperResolution actually have the game render at the higher resolution, so the game believes it’s running on ahigher resolution display, and the GPU then filters and samples down. The process should work with

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