http://www.avsforum.com/t/1518240/w...r-diffusion-you-can-forget-about-a-cheap-htpc
http://community.futuremark.com/for...aught-up-with-high-end-cards-say-Hi-to-NNEDI3!
"For all content:
Untick all boxes in "Trade Quality for Performance" section.
Image downscaling - Catmull-Rom with Anti-Ringing Filter and Scale in Linear Light enabled.
Image upscaling - Jinc (4 taps) with Anti-Ringing Filter enabled.
Smooth Motion - enable for all 60hz displays unless they can do 23/24hz refresh rate. If they can do 23/24Hz and that is what you use, disable Smooth Motion. If it chokes your PC during 60Hz playback when used with NNEDI3 and Error Diffusion - disable it.
For high quality 1080p HD content on a 1080p monitor/TV (minimum for high quality is 8Gb+ 1080p rips):
Chroma upscaling - NNEDI3 (use 32 or more neurons for ANY NNEDI3 setting because 16 neurons produces minor artifacts).
Image doubling - disable unless you use a display with a resolution higher than 1080p.
Artifact removal - disable or use low/med.
For SD, 720p, and low quality 1080p content of a display of any resolution:
Artifact Removal - enable and use high settings for low quality, and low settings for high quality.
Chroma upscaling - NNEDI3 (32+ neurons).
Image doubling - set to "Always" for NNEDI3 doubling of Luma resolution (32+ neurons) and if your card can do more - set to "Always" NNEDI3 quadrupling of Luma resolution (32+ neurons). If you can pull that off too - go ahead and set "Always" for Chroma doubling (32+ neurons) and Chroma quadrupling (32+ neurons). Luma has a stronger effect than Chroma in image doubling/quadrupling.
If you have a display with a resolution higher than 1080p and wish to try Image Doubling/Quadrupling with high quality 1080p content - be my guest to use whichever settings you think your card can handle. 8Gb+ legit 1080p rips = high quality. 2Gb legit 1080p rip = very low quality. Make sure to press CTRL + J to see if you are losing any frames. Your GPU usage should sky-rocket during playback if everything is properly configured, even if you have a GTX 780 Ti 4xSLI monster machine. You may need to OC your videocard to keep up or you may lose some frames if your videocard lowers GPU clocks due to reaching high temps - the same exact concept as with video games, but losing a few frames here and there in video games is not as devastating as losing frames during video media playback."