Gregster found out what the problem was:
http://forums.overclockers.co.uk/showthread.php?t=18679713&page=7
The default settings/profile of Nvidia control panel don't produce the best quality, at least in BF4, only with "prefer max quality" AF was working as it should at the cost of ~10% performance hit on a Titan X.
I wonder how many more games this happens and how many reviews are done with the default setting in the control panel or profiles.
That is a good question that reviewers should really look into. I just checked my NV Panel and it set to Quality by default. (New install, haven't touched anything in NV Panel).
The updated video with both recorded at the same quality shows the exact same issue as before with the TitanX, a clear lack of AF, texture detail, and possibly draw distance of objects. This has nothing and never had anything to do with the color or gamma settings or "black crush". This is simply that his TitanX video shows lowered LOD and there are very clear screenshots from the video that point this out. You can watch the video and see it clearly. This could very well be an issue with his setup or how he recorded, but the difference is clear.
Are you kidding me? AF doesn't affect texture detail or draw distance in close objects. People were crying the NV side was mixing textures, lines were painted ONTOP of ground textures, objects were missing in the distance. Even the two images provided only saw AF set to either 4x or off. There are no textures or objects missing.
Take the same image and adjust the gamma and you'll see objects missing and textures gone because they'll wash out into surrounding textures/objects.
If you really did read the thread, then to try and call him out is flat out tasteless. The only reason he did the videos is to give back to the community and he had no intention of starting any of this, it was other posters who saw the video and noticed the quality difference. The OP didn't want to be involved in any controversy and that's why he was reluctant to add further material to the discussion.
I pointed out a major flaw with his first video. An issue that I've showed through various examples that can AFFECT image quality negatively, more so than lower AF. I don't have an account there and I've asked the people posting here if they had one there to ask him to post an unedited video (ie the colors untouched). The end result would be more similar to this video, and magically "textures/objects" still aren't missing.
Lastly, there are only a couple posters (as expected) who are trying to make this into a hit piece against nVidia, the vast majority of people have simply noticed what is clear in the video and are interested to look into it further. Again, this very well could be an issue with a very simple answer, but it deserves a little investigation. Those trying to throw out all these red herrings as to make it seem like it's all a farce are either being ignorant or dishonest.
I'm not even referring to this place, I visited the four other threads where this was discussed. You want me to get you a few charming quotes? And no, the majority of people DIDNT even address the glaring issue of color representation. An issue that can make something like WORSE, should I post more examples?
One can not discuss IQ issues until the issue that the original video that sparked this is resolved of it's most glaring issue - one side had the colors adjusted which created other issues. It was no longer a 1:1. People aren't saying now "look, the lines are over the paper textures LOL" now its a more clear "something is up with anisotropic filtering, what gives?"
Unless, you're now going to go on record saying "lowering AF reduces texture quality and removes objects."
EDIT: I just realized I maybe looking at NV Panel wrong (I admit I hate it over AMD CCC). I'm a let this post stay as it is if I'm an idiot and am speaking out my rear-end. If NV is cheating on Texture Filtering (not Anisotropic Filtering) they deserve any and all hell they get for this! I still stand by my claim that the black crush made things even more unbalanced. Probably because I was focusing on that glaring issue that I failed to see the filtering issue.