Quote Originally Posted by Syx View Post
See my post: http://forum.square-enix.com/ffxiv/t...=1#post1234692

It is an issue with DirectX 9's poor multithreading support. There is no fix outside of rewriting the game engine specifically with a multithread DX9 rendering pipeline with a good thread synchronization backend or updating AND migrating the engine to DX11, which Squeenix claims should happen sometime next year with the launch of the PS4 version.
Thats not 100 percent accurate.. The client itself still needs to support parallel processing to take advantage of multi threaded multi core.. systems if its not its still bound by one cpu core.