I have R5 1600. At stock clocks with the ram at 2933Mhz using a GTX 980ti I get 14000 on the Benchmark on Max @ 1080p.

That is at like 20% CPU usage. I would highly recommend the R5 1400 for the price point. FFXIV makes good use of the Hyperthreading to increase FPS in highly populated areas so I would recommend it over an i5. And for streaming it is a beast.