Benchmark is telling us something...

[Valkyrie_Lenneth]

My system is around 4 years old, I7 2600K w/ 8gb ram (I had 16 until a stick died a year back) but I've kept up on my GPU with a 1070 8gb.

It's apparent that XIV is GPU reliant, more than CPU or even ram, I scored 14.9k on the benchmark with everything at max @ 1080p.

Edit: I couldn't seem to embed the image of the benchmark for reference, so here's a link to the image.

http://imgur.com/a/2EgIK

Your URL shows its the dektop high preset, not the maximum preset. Overclocking my CPU just 100 mhz got me an extra 400 points on the benchmark. There is quite a bit of CPU usage in game.