ARM Holdings announced their Cortex - A53 and Cortex - A57 cores on 30 October 2012 .
Their Cortex - A53 and Cortex - A57 cores are their first cores based on their 64 - bit architecture .
ARM Holdings announced their Cortex - A53 and Cortex - A57 cores , their first cores based on their 64 - bit architecture , on 30 October 2012 .