Your pics made me want to start messing around with the benchmarks. The one you used "desert sunrise" is probably the one where I get the best fps. The "concrete jungle" city benchmark is where my rig struggles since I have problems with buildings for whatever reason.
Here's my "desert sunrise" test using the same settings as your 2nd pic (although 1080p instead of 1200p)

Framerate is okish and those are still really nice looking settings.
In fact, when I drop SSAO off and the object detail down a bit, I get a solid 50fps

But then just by changing benchmarks. World settlement -> City I lose over 20 whole frames just because there are lots of BUIILDINGS wtfffff :'(

Note this is just the average. A lot of the city benchmark is spent at least 5fps below the average. So even with SSAO off I'm looking at 25fps in the city
This is basically what I have to do if I ever want 60fps in the city!

So at the end of the day, going by your benchmarks and testing each bit to see how much it affects framerate (going from LOW->HIGH textures was only a 2-3fps hit and a big visual difference), I ended up going with this and capping the game at 30fps.

As long as I'm in 90% of the game that is not city it stays 30fps and looks gorgeous. Totally awesome, yay.
But when I
do happen into the city it drops really hard and is basically unplayable:

Again, that's the average. In a lot of the benchmark it stays consistently at 14-15fps.
So my overall decision is to stick to what I have above and basically STAY OUT OF THE CITY. When I do decide I want to go hang out in the city, while I'm there I'll drop off AA, SSAO, and drop object detail down and at least will have 25fps+ which is at least playable for those sections.
It's kinda annoying to have to change settings depending on the location, but my rig really doesn't like the big city.