The Snapdragon 818 supports LPDDR4 RAM and also takes benefit of Adreno 532 GPU.
It will be able to manage LTE Cat-10 speeds once released.
Lastly, the chip is built using 20nm process technology.
There are chances that the details may change as the silicone comes near its official launch.
All these informations should be taken with a pinch of salt.
However, nothing was mentioned about the Snapdragon 818.
source: www.techworm.net