Recently (about a week ago) I started noticing some graphical corruption similar to what you have in your links.
It can happen anywhere and it only lasts a split second before the rendering goes back to normal and all is fine again.
I play since beta and never had any issues with graphics, don't know why they started now. Can't be my card temps since I keep those under control and the max values I get are well below 60 degrees.
I have an AMD HD6950 and about a month ago I installed the current AMD drivers, catalyst 14.12. Don't know if that's the cause since like I said I never had any issues at all in the past with previous drivers versions.
Anyway I talked to some guildies and some of them did experience similar issues with AMD cards (one of them stopped having these issues after switching to an NVidia card but that doesn't explain much since the OP also has an NVidia).
I really hope ZOS figures out the problem, the graphics on this game are pretty awesome in my opinion and these sort of problems really break the immersion and degrade the experience as a whole:(
I'm running an AMD HD6770 fanless, and don't have those issues ... maybe as I don't run TESO on max. graphical settings, and without special Catalyst settings ...I have an AMD HD6950 and about a month ago I installed the current AMD drivers, catalyst 14.12. Don't know if that's the cause since like I said I never had any issues at all in the past with previous drivers versions.