The best you can do for an ARM latency table is ddging "aXX optimization guide" a57: http://infocenter.arm.com/help/topic/com.arm.doc.uan0015b/Cortex_A57_Soft

The best you can do for an ARM latency table is ddging "aXX optimization guide" a57: http://infocenter.arm.com/help/topic/com.arm.doc.uan0015b/Cortex_A57_Software_Optimization_Guide_external.pdf http://infocenter.arm.com/help/topic/com.arm.doc.uan0015b/Co... a72: http://infocenter.arm.com/help/topic/com.arm.doc.uan0016a/cortex_a72_software_optimization_guide_external.pdf http://infocenter.arm.com/help/topic/com.arm.doc.uan0016a/co... Notably not public is the a53 version of this document. I did some work getting ORB_SLAM to run on the raspberry pi a couple years ago. My conclusion was that the instruction timings for NEON instructions are more or less the same as the a57, but just remember there are only two instructions issued per cycle and everything is in order. Edit: replace google with ddg