difference between rads?

I was just wondering if anybody knew if there is a difference between civic rads? Whats the difference between a radiator with a manual trans or auto trans? The reason I ask is because I’ve noticed some ads that list whether the rad is for an auto or standard… Any help would be appreciated… thanks

sorry finally found the answer to my question…Also want to know if a half rad for an auto has the same dimensions as the one for a standard trans…?