On the very bottom of the Benchmark site page, they have listed some ratings for how well your computer will likely be able to handle FFXIV:ARR when it is available.
The highest listed rating is for 7000 or more on which they say "easily capable of running the game on highest settings".
The lowest listed rating is for under 1000 on which they say "Does not meet specifications for running the game".
There are a total of 8 rankings.
However, they do not state what settings these rankings apply to.
I believe the default preset is "Medium 1280x720". I tend to believe that may be the settings to which these ratings apply, but it does not actually say.
When I run the benchmark at the preset "Medium 1280x720" with no other adjustments to setting details, I get a score of over 10000 (and the results indicate a frame rate in the 90s), which would put me in that top ranking I noted above.
When I run the benchmark at the preset "Maximum 1920x1080" (the resolution I have set on my Windows Desktop using a HDTV connected with a HDMI cable), the score comes up around 3200 (with a frame rate listed at around 26 in the results). Using this score, the rankings state "Capable of running the game on default settings. Consider switching to higher resolution depending on performance".
So what is the benchmark really trying to tell me?
Without a statement of which settings those rankings apply to, it's not very clear.