In a modern 64-bit processor this would mean that a cluster of Cortex-A57 or Cortex-A72 cores would be used in conjunction with a cluster of Cortex-A53 cores.
In a modern 64-bit processor this would mean that a cluster of Cortex-A57 or Cortex-A72 cores would be used in conjunction with a cluster of Cortex-A53 cores.