Apple doesn't release the details but Anandtech estimates A12 has 13 execution ports (https://www.anandtech.com/show/13392/the-iphone-xs-xs-max-review-unveiling

Apple doesn't release the details but Anandtech estimates A12 has 13 execution ports (https://www.anandtech.com/show/13392/the-iphone-xs-xs-max-review-unveiling-the-silicon-secrets/3 https://www.anandtech.com/show/13392/the-iphone-xs-xs-max-re...). I'm guessing the numbers for 6 ALU ports are more accurate than the overall since it's hard to blackbox determine the port sharing structure. Recent Intel / Zen have 4 ALU ports AFAIK.