Visdagon
Your memory settings in enblocal.ini are incorrect. You've set the VideoMemorySizeMb WAAAAY too high. To know the number to use, download Boris's VRAM Size Test from here:
http://enbdev.com/download_vramsizetest.htm
Run the DX9 version of the program. The number that comes up is the largest amount your system can actually use in DirectX 9. You usually wanna set it 64-128MB lower than that to still give Windows and any browsers you have open room to use VRAM (cuz browsers use vram now...)
ReservedMemorySizeMB also looks a bit on the high end. In my experience, this number really varies a lot from system to system. I'd try setting it to a lower amount (256-512) and see if your game doesn't run the same or better. 768 is a bit on the high end of the usual, so it might be an ok amount and work right, but no harm in experimenting a little here. With these parameters, bigger does not always mean better.
Anecdotally, I used to set my VideoMemorySizeMb to 12GB due to card VRAM and System RAM thinking it was about right (some old information was a factor here too.) Boris then issued some correction about this stuff, I lowered mine according to the tool to exactly 4000. Game runs smoother, less stuttery.
Also, (and I don't entirely understand this one) in your Skyrim.ini you've set iNumHWThreads=8. You'll want to remove this line entirely. Logically speaking you'd think "use all my cores, better!" but for whatever reason (Boris has explained it but I never retained the info) modifying this number causes instability. If Boris cares too, he could explain it.
Anyway, everything else looks good to my eyes!