Re: Is A7 Cyclone in iPad mini w/retina Armv8 or Armv7
The A7 features an Apple-designed 64-bit 1.3–1.4 GHz ARMv8-A dual-core CPU, called Cyclone. The ARMv8-A instruction set doubles the number of registers of the A7 compared to the ARMv7 used in A6. It now has 31 general purpose registers that are each 64-bits wide and 32 floating-point/NEON registers that are each 128-bits wide.
The A7 also integrates a graphics processing unit (GPU) which AnandTech believes to be a PowerVR G6430 in a four cluster configuration.