The Asus Zenfone 2 is coming with a 64 bit Atom Z3580 and a PowerVR G6430 and it comes with 4GB of memory. All of this for $200 apparently. Plus the design of the phone is amazing.
EDIT: $200 Dollar version is only 2GB. No confirmation on how much the 4GB version will be.
EDIT: $200 Dollar version is only 2GB. No confirmation on how much the 4GB version will be.