The 13-inch notebooks will be the world's "most powerful under 15-inches" with their 3200 x 1800 QHD+ displays, GTX 870M GPUs, dual M.2 SSDs in RAID 0 and a thickness of just 22.9 mm for both models
http://www.notebookcheck.net/Aorus-reveals-X3-and-X3-Plus-gaming-notebooks.118218.0.html
I believe the pixel density is listed incorrectly for the X3 Plus. You can find the correct PPI here:
http://pixensity.com/list/asus-x3-plus-2108/
These should be some fun laptops!
fixed, thanks for the correction!