Here's a link to Agner's optimization manuals, for the benefit of those who may not be familiar with them: http://www.agner.org/optimize/#manuals http://www.agn

Here's a link to Agner's optimization manuals, for the benefit of those who may not be familiar with them: http://www.agner.org/optimize/#manuals http://www.agner.org/optimize/#manuals In short they contain what is probably the best x86 instruction latency reference, based on actual empirical measurements on various Intel/AMD/VIA chips.