According to LG finland offcial, There are two version of the LG G3 D855. You can purchase a 32GB model with 3GB of RAM or a 16GB variant with 2GB of RAM. Both of the variants come with a 2,5 GHz Quad Core Qualcomm® Snapdragon™ 801 CPU.
Both of the variants come with a 2,5 GHz Quad Core Qualcomm® Snapdragon™ 801 CPU. Regarding the technical Specs, The only difference is the size of RAM and Internal Storage of the two model variants.
There is no doubt that the 16GB model with 2GB of RAM will be cheaper than the 32GB version of the LG G3.