(Click to embiggen)

I did play with some settings myself and while I've been trying to identify a cause for bored-CPU/bored-GPU results, I can't find any, really. Occlusion Culling doesn't really do anything (though causes pop-in around corners) for performance for me.

XIV is running on the 840 EVO, the rest of the hardware is visible. This is on WIN8.1x64.