Square Enix has just released the official benchmark tool for FINAL FANTASY XIV: Stormblood. According to the company, this official benchmark software uses actual maps and playable characters to assign a score to your PC and rate its performance.
A character creation tool is also included, allowing you to view a playable character as they will appear in-game.
Appearance data can be saved for use creating characters in the retail version. You may choose to have your character appear in place of the default Hyur male monk or samurai in the benchmark cutscenes.
Those interested can download the benchmark tool from here.