Everyone's favorite analyst, KGI analyst Ming-Chi Kuo, predicts the new iPhone 5s will include an A7 System on a Chip (aka processor).
Nothing too surprising here, since every new iPhone has always included a faster and better processor. Ming-Chi Kuo believes the A7 will be based on the new ARMv8 architecture which should mean better performance with lower power consumption and a smaller size. Kuo believes the new processor should run 20% faster than the existing A6.
The new iPhone is expected to contain the same 1GB of RAM but the faster LPDDR3 (instead of LPDDR2 in the A6). Kuo is not sure whether the A7 will be 32 or 64 bit.