R3 Upscale 6k Video

Jan 22, 2012
I was watching a Youtube video on R3 (I forgot which one it was), but they mentioned that R3 has an 'upscale' 6k video and said that in a crop factor it is 'pixel to pixel' 6k. Can someone kindly educate me on what this means? Does it mean that the crop 6k video will be better? I will be soon using the R3 for a VIDEO job in Africa and the crop might just help with better reach, but am concerned that crop mode may not look as good as full frame. So confused. Any thoughts, please? :)