I ran the FFIV Official Benchmark http://www.finalfantasyxiv.com/media/benchmark/na/
and scored a whopping 1053, which doesn't meet the minimum requirements at all. Even the Benchmark at the end says I'm running an Intel Pentium 4 CPU 3GHz (2 CPUs)
When I run FFXIV on the lowest possible settings/resolution (and it looks like a unicorn threw up on my screen), I STILL have 10 FPS, and Task Manager shows my CPU pegged at around 85%. Chicanery!
Further research into the exact model of my motherboard and cpu shows I'm running a Hyperthreading CPU, which the OS assumes is 2 CPU's, but System Information reveals is NOT a Dual Core.
Hope this helps. I want to play this game!!!!!