Interestingly I noted that it supports 16GB DDR3 RAM. Since all current ARM cores are 32bit I wonder if they are doing some sort of bank switching to address all the RAM.
Further reading:
https://en.wikipedia.org/wiki/Cortex_A15
http://www.eetimes.com/electronics-news/4206387/ARM7-40bit-v...
Even in a modern x86-64 bit architechture, you can do some limited 128 and 256 bit operations. This ARM may have a greater-than 32 bit memory addressing setup, but only support 32 bit opcodes for the main registers.