I've been playing around with battlefield 4 and the nvidia control panel.
The only way you can get results as bad as those screens is if you overrride anisotropic filtering, looking at the images I think it's completely off.
If you go to the nvidia control panel, adust image settings with preview, then do the slider all the way to the left (performance) it actually turns anisotropic filtering off, so that's probably how it happened, or it's a bug in the game/new driver, I'm running the 353.06
Driver defaults, even setting the texture filtering optimisations to highest performance actually produce good image quality, you have to override anisotropic filtering for the bad image.
There's no way nvidia would turn off anisotropic filtering for a modest performance gain, either it's user error or a bug.