And the awards for the most obnoxiously impossible to understand Slides goes to: Nvidia
Their Marketing slides are absolutely impossible to make anything technical out of, "Quality Gain (PSNR)" listed in "It's just better by X" when actual PSNR is expressed in decibels, so we have no clue what the difference in dB the results are but, we sure do know "it's better".
The slide also says "x264 Fast" and the legend says "x264 Very Fast at 3500kbps"
NVENC is nice, it's really useful for people that can't afford a big CPU or a second encoding PC. I'm glad they're working on the compression and quality, but from what I'm seeing here, it's just technobabble and "it just works" type of marketing material.
Comparing 2 Images in quality without knowing the resolution/FPS/bitrates, that's helping.