I think you better run Malware Bytes anti malware and check your system out for a bitcoin malware known to heavily utilise the GPU.
This is my stats on my 680/i7 920 in that exact location, i've screenshotted max settings, as well as what i typically use for general gameplay.
Max settings
http://s25.postimg.org/l4638c64r/ffx..._00_28_426.jpg
My typical settings, low shadow lod is also ticked further down.
http://s25.postimg.org/66xm7bswb/ffx..._59_04_900.jpg
